chore: Update dependency based on python version (#485)

* chore: Update dependency based on python version

* Update renovate.json5

Author: dishaprakash

.github/renovate.json5

@@ -77,6 +77,20 @@
       "matchPackageNames": ["langchain-postgres"],
       "semanticCommitType": "feat",
       "groupName": "langchain-postgres"
+    },
+    {
+      "description": "Disable pillow updates for python <=3.9 in pyproject.toml",
+      "matchFileNames": ["pyproject.toml"],
+      "matchPackageNames": ["Pillow"],
+      "matchCurrentValue": "==11.3.0",
+      "enabled": false
+    },
+    {
+      "description": "Disable isort updates for python <=3.9 in pyproject.toml",
+      "matchFileNames": ["pyproject.toml"],
+      "matchPackageNames": ["isort"],
+      "matchCurrentValue": "==6.1.0",
+      "enabled": false
     }
   ],
 }

pyproject.toml

@@ -45,14 +45,16 @@ langgraph = [
 ]
 test = [
     "black[jupyter]==25.9.0",
-    "isort==6.1.0",
+    "isort==6.1.0; python_version == '3.9'",
+    "isort==7.0.0; python_version >= '3.10'",
     "langgraph==0.6.10",
     "mypy==1.18.2",
     "pytest-asyncio==0.26.0",
     "pytest==8.4.2",
     "pytest-cov==7.0.0",
     "pytest-depends==1.0.1",
-    "Pillow==11.3.0",
+    "Pillow==11.3.0; python_version == '3.9'",
+    "Pillow==12.0.0; python_version >= '3.10'",
     "langchain-tests==0.3.22"
 ]