fix(ci): use full GitHub URLs for actions

data.forgejo.org is unreachable from the runner. Using https://github.com/
prefix for all action uses to fetch directly from GitHub instead of the
Forgejo marketplace mirror.

.forgejo/workflows/docker.yml

@@ -15,14 +15,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: https://github.com/docker/setup-buildx-action@v3
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: https://github.com/docker/metadata-action@v5
         with:
           images: |
             ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
@@ -35,7 +35,7 @@ jobs:
 
       - name: Login to GHCR
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
+        uses: https://github.com/docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -43,14 +43,14 @@ jobs:
 
       - name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
+        uses: https://github.com/docker/login-action@v3
         with:
           registry: docker.io
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: https://github.com/docker/build-push-action@v6
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}