🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

.kokoro/requirements.txt

@@ -263,9 +263,9 @@ jeepney==0.8.0 \
     # via
     #   keyring
     #   secretstorage
-jinja2==3.1.3 \
-    --hash=sha256:7d6d50dd97d52cbc355597bd845fabfbac3f551e1f99619e39a35ce8c370b5fa \
-    --hash=sha256:ac8bd6544d4bb2c9792bf3a159e80bba8fda7f07e81bc3aed565432d5925ba90
+jinja2==3.1.2 \
+    --hash=sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852 \
+    --hash=sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61
     # via gcp-releasetool
 keyring==24.2.0 \
     --hash=sha256:4901caaf597bfd3bbd78c9a0c7c4c29fcd8310dab2cffefe749e916b6527acd6 \

noxfile.py

@@ -310,16 +310,7 @@ def docs(session):
 
     session.install("-e", ".")
     session.install(
-        # We need to pin to specific versions of the `sphinxcontrib-*` packages
-        # which still support sphinx 4.x.
-        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
-        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
-        "sphinxcontrib-applehelp==1.0.4",
-        "sphinxcontrib-devhelp==1.0.2",
-        "sphinxcontrib-htmlhelp==2.0.1",
-        "sphinxcontrib-qthelp==1.0.3",
-        "sphinxcontrib-serializinghtml==1.1.5",
-        "sphinx==4.5.0",
+        "sphinx==4.0.1",
         "alabaster",
         "recommonmark",
     )
@@ -356,15 +347,6 @@ def docfx(session):
 
     session.install("-e", ".")
     session.install(
-        # We need to pin to specific versions of the `sphinxcontrib-*` packages
-        # which still support sphinx 4.x.
-        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
-        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
-        "sphinxcontrib-applehelp==1.0.4",
-        "sphinxcontrib-devhelp==1.0.2",
-        "sphinxcontrib-htmlhelp==2.0.1",
-        "sphinxcontrib-qthelp==1.0.3",
-        "sphinxcontrib-serializinghtml==1.1.5",
         "gcp-sphinx-docfx-yaml",
         "alabaster",
         "recommonmark",