chore(python) deprecates python 3.9 and add 3.14 in CI

Author: antechrestos

.github/workflows/pythonpackage.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - uses: actions/checkout@v6

pyproject.toml

@@ -18,7 +18,7 @@ repository = "https://github.com/cloudfoundry-community/cf-python-client"
 keywords = ["cloudfoundry", "cf"]
 
 [tool.poetry.dependencies]
-python = ">=3.9"
+python = ">=3.10"
 aiohttp = ">=3.8.0"
 protobuf = "6.33.2"
 oauth2-client= "1.4.2"