Update test.yml

Author: fsbraun

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9, '3.10', '3.11', '3.12']
+        python-version: [3.9, '3.10', '3.11', '3.12']
         requirements-file: [
           django-4.2.txt,
           django-5.0.txt,
@@ -17,7 +17,7 @@ jobs:
         ]
         custom-image-model: [false, true]
         os: [
-          ubuntu-20.04,
+          ubuntu-latest,
         ]
         exclude:
           - requirements-file: django-5.0.txt
@@ -28,10 +28,10 @@ jobs:
             python-version: 3.8
           - requirements-file: django-5.1.txt
             python-version: 3.9
-          - requirements-file: django-main.txt
-            python-version: 3.8
           - requirements-file: django-main.txt
             python-version: 3.9
+          - requirements-file: django-main.txt
+            python-version: 3.10
 
     steps:
     - uses: actions/checkout@v1