modernized github actions

Author: wolph

.github/workflows/main.yml

@@ -14,9 +14,11 @@ jobs:
         python-version: ['3.9', '3.10', '3.11', '3.12'] # Maybe soon?, '3.13']
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -36,9 +38,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 2
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: '3.10'
     - name: Install dependencies