[Requirements] Require kfp >= 1.8.14 [1.6.x] (#5608)

requirements.txt

@@ -1,12 +1,13 @@
+
 # >=1.28.0,<1.29.0 botocore inside boto3 1.28.17 inside nuclio-jupyter 0.9.13
 urllib3>=1.26.9, <1.27
 GitPython~=3.1, >=3.1.41
 aiohttp~=3.9
 aiohttp-retry~=2.8
 click~=8.1
-# 3.0/3.2 iguazio system uses 1.0.1, but we needed >=1.6.0 to be compatible with k8s>=12.0 to fix scurity issue
-# since the sdk is still mark as beta (and not stable) I'm limiting to only patch changes
-kfp~=1.8
+# previous mlrun versions limit kfp < 1.8.14 which causes installing the current mlrun version to fail
+# due to dependency conflicts. >=1.8.14 will force old environments to upgrade kfp.
+kfp~=1.8, >=1.8.14
 nest-asyncio~=1.0
 ipython~=8.10
 nuclio-jupyter~=0.9.15

tests/test_requirements.py

@@ -131,6 +131,7 @@ def test_requirement_specifiers_convention():
         "gitpython": {"~=3.1, >=3.1.41"},
         "pydantic": {"~=1.10, >=1.10.8"},
         "jinja2": {"~=3.1, >=3.1.3"},
+        "kfp": {"~=1.8, >=1.8.14"},
         "pyopenssl": {">=23"},
         "google-cloud-bigquery": {"[pandas, bqstorage]==3.14.1"},
         # plotly artifact body in 5.12.0 may contain chars that are not encodable in 'latin-1' encoding