Activate long path support for Windows

Author: zklaus

.github/workflows/checkout-test.yml

@@ -50,6 +50,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: Activate longpath support
+        if: matrix.runs-on == 'windows-latest'
+        run: git config --system core.longpaths true
+
       # Basic checkout
       - name: Checkout basic
         uses: ./.github/actions/checkout/