[issue-839] Drop CI support for Python 3.7 (we are long past its EOL)

Signed-off-by: Armin Tänzer <armin.taenzer@tngtech.com>

Author: armintaenzertng

.github/workflows/check_codestyle.yml

@@ -20,13 +20,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
-        exclude: # see https://github.com/actions/runner-images/issues/9770#issuecomment-2085623315
-          - python-version: "3.7"
-            os: macos-latest
-        include:
-          - python-version: "3.7"
-            os: macos-13
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/install_and_test.yml

@@ -17,13 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
-        exclude: # see https://github.com/actions/runner-images/issues/9770#issuecomment-2085623315
-          - python-version: "3.7"
-            os: macos-latest
-        include:
-          - python-version: "3.7"
-            os: macos-13
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
 
     steps:
       - uses: actions/checkout@v3