update CI configuration to remove Python 3.9; set Python 3.10 as the target version

Author: Eugene Shershen

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
           - 5432:5432
     strategy:
       matrix:
-        python: ["3.8", "3.9", "3.10", "3.11", "3.13.3"]
+        python: ["3.8", "3.10", "3.11", "3.13.3"]
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
@@ -48,13 +48,13 @@ jobs:
         DATABASE_URL: postgresql+psqlpy://postgres:password@localhost:5432/test_db
 
     - name: Produce coverage report
-      if: matrix.python == '3.9'
+      if: matrix.python == '3.10'
       run: pytest --cov=psqlpy_sqlalchemy --cov-report=xml
       env:
         DATABASE_URL: postgresql+psqlpy://postgres:password@localhost:5432/test_db
 
     - name: Upload coverage report
-      if: matrix.python == '3.9'
+      if: matrix.python == '3.10'
       uses: codecov/codecov-action@v1
       with:
         file: ./coverage.xml
@@ -66,11 +66,11 @@ jobs:
       matrix:
         include:
         - os: windows-latest
-          python: "3.9"
+          python: "3.10"
         - os: windows-latest
           python: "3.13.3"
         - os: macos-latest
-          python: "3.9"
+          python: "3.10"
         - os: macos-latest
           python: "3.13.3"
     steps:
@@ -101,7 +101,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.9"
+        python-version: "3.10"
 
     - name: Install dependencies
       run: |

pyproject.toml

@@ -17,7 +17,6 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -94,7 +93,7 @@ quote-style = "double"
 indent-style = "space"
 
 [tool.mypy]
-python_version = "3.9"
+python_version = "3.10"
 plugins = ["pydantic.mypy"]
 follow_imports = "silent"
 check_untyped_defs = true