Remove EOL Python 3.8 and add 3.13 to CI (#2397)

Co-authored-by: Marti Raudsepp <[email protected]>

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
         shard: [0, 1, 2, 3]
       fail-fast: false
     steps:
@@ -132,11 +132,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.11', '3.12']
+        python-version: ['3.11', '3.12', '3.13']
         django-version: ['4.2', '5.0', '5.1']
         include:
-          - python-version: '3.8'
-            django-version: '4.2'
           - python-version: '3.9'
             django-version: '4.2'
           - python-version: '3.10'

setup.py

@@ -62,11 +62,11 @@ def find_stub_files(name: str) -> List[str]:
     classifiers=[
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
-        "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",
+        "Programming Language :: Python :: 3.13",
         "Typing :: Typed",
         "Framework :: Django",
         "Framework :: Django :: 4.2",