diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7f6e836c94..150ae246f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -192,10 +192,7 @@ jobs:
       - name: install deps
         run: |
           pdm use -f $PYTHON
-          pdm install -G testing
-
-      - name: install example plugin
-        run: pdm add ./tests/plugin
+          pdm install -G testing -G testing-plugin
 
       - run: pdm run pytest ./tests/plugin
         env:
diff --git a/pdm.lock b/pdm.lock
index ad61680f19..e2be7de726 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -2,11 +2,11 @@
 # It is not intended for manual editing.
 
 [metadata]
-groups = ["default", "docs", "email", "linting", "memray", "mypy", "testing", "testing-extra"]
+groups = ["default", "docs", "email", "linting", "memray", "mypy", "testing", "testing-extra", "testing-plugin"]
 cross_platform = true
 static_urls = false
 lock_version = "4.3"
-content_hash = "sha256:f0a78bb4d165ae7846d0ff41205a428454ce79981747e40cc1d08fe51142e060"
+content_hash = "sha256:2c87b78c23c61dd0969e3f79617fe36e0a0b645236b22b5042e215c55bf1e78c"
 
 [[package]]
 name = "annotated-types"
@@ -436,6 +436,12 @@ files = [
     {file = "email_validator-2.0.0.post2.tar.gz", hash = "sha256:1ff6e86044200c56ae23595695c54e9614f4a9551e0e393614f764860b3d7900"},
 ]
 
+[[package]]
+name = "example-plugin"
+version = "0.1.0"
+path = "./tests/plugin"
+summary = ""
+
 [[package]]
 name = "exceptiongroup"
 version = "1.1.3"
@@ -889,12 +895,12 @@ files = [
 
 [[package]]
 name = "mkdocs-material-extensions"
-version = "1.1.1"
+version = "1.2"
 requires_python = ">=3.7"
 summary = "Extension pack for Python Markdown and MkDocs Material."
 files = [
-    {file = "mkdocs_material_extensions-1.1.1-py3-none-any.whl", hash = "sha256:e41d9f38e4798b6617ad98ca8f7f1157b1e4385ac1459ca1e4ea219b556df945"},
-    {file = "mkdocs_material_extensions-1.1.1.tar.gz", hash = "sha256:9c003da71e2cc2493d910237448c672e00cefc800d3d6ae93d2fc69979e3bd93"},
+    {file = "mkdocs_material_extensions-1.2-py3-none-any.whl", hash = "sha256:c767bd6d6305f6420a50f0b541b0c9966d52068839af97029be14443849fb8a1"},
+    {file = "mkdocs_material_extensions-1.2.tar.gz", hash = "sha256:27e2d1ed2d031426a6e10d5ea06989d67e90bb02acd588bc5673106b5ee5eedf"},
 ]
 
 [[package]]
@@ -1191,7 +1197,7 @@ version = "2.1.0"
 requires_python = ">=3.7"
 git = "https://github.com/pydantic/pydantic-extra-types.git"
 ref = "main"
-revision = "d7b0e4a1a9039d11802f9206a47ebb4db251aa03"
+revision = "8e9b1e8169c99ab76efd2afe6a904629df1fd610"
 summary = "Extra Pydantic types."
 dependencies = [
     "pydantic>=2.0.3",
@@ -1559,27 +1565,27 @@ files = [
 
 [[package]]
 name = "ruff"
-version = "0.0.290"
+version = "0.0.291"
 requires_python = ">=3.7"
 summary = "An extremely fast Python linter, written in Rust."
 files = [
-    {file = "ruff-0.0.290-py3-none-macosx_10_7_x86_64.whl", hash = "sha256:0e2b09ac4213b11a3520221083866a5816616f3ae9da123037b8ab275066fbac"},
-    {file = "ruff-0.0.290-py3-none-macosx_10_9_x86_64.macosx_11_0_arm64.macosx_10_9_universal2.whl", hash = "sha256:4ca6285aa77b3d966be32c9a3cd531655b3d4a0171e1f9bf26d66d0372186767"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:35e3550d1d9f2157b0fcc77670f7bb59154f223bff281766e61bdd1dd854e0c5"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:d748c8bd97874f5751aed73e8dde379ce32d16338123d07c18b25c9a2796574a"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:982af5ec67cecd099e2ef5e238650407fb40d56304910102d054c109f390bf3c"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:bbd37352cea4ee007c48a44c9bc45a21f7ba70a57edfe46842e346651e2b995a"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:1d9be6351b7889462912e0b8185a260c0219c35dfd920fb490c7f256f1d8313e"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:75cdc7fe32dcf33b7cec306707552dda54632ac29402775b9e212a3c16aad5e6"},
-    {file = "ruff-0.0.290-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:eb07f37f7aecdbbc91d759c0c09870ce0fb3eed4025eebedf9c4b98c69abd527"},
-    {file = "ruff-0.0.290-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:2ab41bc0ba359d3f715fc7b705bdeef19c0461351306b70a4e247f836b9350ed"},
-    {file = "ruff-0.0.290-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:150bf8050214cea5b990945b66433bf9a5e0cef395c9bc0f50569e7de7540c86"},
-    {file = "ruff-0.0.290-py3-none-musllinux_1_2_i686.whl", hash = "sha256:75386ebc15fe5467248c039f5bf6a0cfe7bfc619ffbb8cd62406cd8811815fca"},
-    {file = "ruff-0.0.290-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:ac93eadf07bc4ab4c48d8bb4e427bf0f58f3a9c578862eb85d99d704669f5da0"},
-    {file = "ruff-0.0.290-py3-none-win32.whl", hash = "sha256:461fbd1fb9ca806d4e3d5c745a30e185f7cf3ca77293cdc17abb2f2a990ad3f7"},
-    {file = "ruff-0.0.290-py3-none-win_amd64.whl", hash = "sha256:f1f49f5ec967fd5778813780b12a5650ab0ebcb9ddcca28d642c689b36920796"},
-    {file = "ruff-0.0.290-py3-none-win_arm64.whl", hash = "sha256:ae5a92dfbdf1f0c689433c223f8dac0782c2b2584bd502dfdbc76475669f1ba1"},
-    {file = "ruff-0.0.290.tar.gz", hash = "sha256:949fecbc5467bb11b8db810a7fa53c7e02633856ee6bd1302b2f43adcd71b88d"},
+    {file = "ruff-0.0.291-py3-none-macosx_10_7_x86_64.whl", hash = "sha256:b97d0d7c136a85badbc7fd8397fdbb336e9409b01c07027622f28dcd7db366f2"},
+    {file = "ruff-0.0.291-py3-none-macosx_10_9_x86_64.macosx_11_0_arm64.macosx_10_9_universal2.whl", hash = "sha256:6ab44ea607967171e18aa5c80335237be12f3a1523375fa0cede83c5cf77feb4"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a04b384f2d36f00d5fb55313d52a7d66236531195ef08157a09c4728090f2ef0"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:b727c219b43f903875b7503a76c86237a00d1a39579bb3e21ce027eec9534051"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:87671e33175ae949702774071b35ed4937da06f11851af75cd087e1b5a488ac4"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:b75f5801547f79b7541d72a211949754c21dc0705c70eddf7f21c88a64de8b97"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:b09b94efdcd162fe32b472b2dd5bf1c969fcc15b8ff52f478b048f41d4590e09"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:8d5b56bc3a2f83a7a1d7f4447c54d8d3db52021f726fdd55d549ca87bca5d747"},
+    {file = "ruff-0.0.291-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:13f0d88e5f367b2dc8c7d90a8afdcfff9dd7d174e324fd3ed8e0b5cb5dc9b7f6"},
+    {file = "ruff-0.0.291-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:b3eeee1b1a45a247758ecdc3ab26c307336d157aafc61edb98b825cadb153df3"},
+    {file = "ruff-0.0.291-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:6c06006350c3bb689765d71f810128c9cdf4a1121fd01afc655c87bab4fb4f83"},
+    {file = "ruff-0.0.291-py3-none-musllinux_1_2_i686.whl", hash = "sha256:fd17220611047de247b635596e3174f3d7f2becf63bd56301fc758778df9b629"},
+    {file = "ruff-0.0.291-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:5383ba67ad360caf6060d09012f1fb2ab8bd605ab766d10ca4427a28ab106e0b"},
+    {file = "ruff-0.0.291-py3-none-win32.whl", hash = "sha256:1d5f0616ae4cdc7a938b493b6a1a71c8a47d0300c0d65f6e41c281c2f7490ad3"},
+    {file = "ruff-0.0.291-py3-none-win_amd64.whl", hash = "sha256:8a69bfbde72db8ca1c43ee3570f59daad155196c3fbe357047cd9b77de65f15b"},
+    {file = "ruff-0.0.291-py3-none-win_arm64.whl", hash = "sha256:d867384a4615b7f30b223a849b52104214442b5ba79b473d7edd18da3cde22d6"},
+    {file = "ruff-0.0.291.tar.gz", hash = "sha256:c61109661dde9db73469d14a82b42a88c7164f731e6a3b0042e71394c1c7ceed"},
 ]
 
 [[package]]
diff --git a/pyproject.toml b/pyproject.toml
index 71e164604c..3153b648a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,14 +92,6 @@ linting = [
     "ruff",
     "mypy~=1.1.1",
 ]
-testing-extra = [
-    # used when generate devtools docs example
-    "ansi2html",
-    "devtools",
-    # used in docs tests
-    "sqlalchemy>=2.0,<3.0",
-    "greenlet>=3.0.0rc3",
-]
 testing = [
     "coverage[toml]",
     "dirty-equals",
@@ -110,6 +102,17 @@ testing = [
     "faker>=18.13.0",
     "pytest-benchmark>=4.0.0",
 ]
+testing-extra = [
+    # used when generate devtools docs example
+    "ansi2html",
+    "devtools",
+    # used in docs tests
+    "sqlalchemy>=2.0,<3.0",
+    "greenlet>=3.0.0rc3",
+]
+testing-plugin = [
+    "example_plugin @ {root:uri}/tests/plugin",
+]
 mypy = [
     "mypy",
     "pydantic-settings>=2.0.0",