Update GitHub Actions

Author: coisa

.github/workflows/tests.yml

@@ -28,6 +28,7 @@ jobs:
             - uses: actions/checkout@v4
               with:
                 submodules: recursive
+                ref: ${{ github.head_ref || github.ref_name }}
 
             - name: Get Composer Cache Directory
               id: composer-cache
@@ -89,7 +90,7 @@ jobs:
                 cd docs/wiki
                 git add .
                 git commit -m "Update wiki content [skip ci]" || echo "No changes to commit"
-                git push
+                git push HEAD:${{ github.head_ref || github.ref_name }}
                 cd ../..
                 git submodule update --remote --merge
                 git push