Allow docker images build and publication to forks

.github/workflows/docker.yml

@@ -10,30 +10,41 @@ on:
 jobs:
   docker:
     runs-on: ubuntu-latest
+    permissions:
+      packages: write  # required to publish docker image
+
+    env:
+      REGISTRY: ghcr.io
+      IMAGE_NAME: ${{ github.repository }}
+
     steps:
       - name: Checkout
         uses: actions/checkout@v3
         with:
           submodules: ${{ ! (github.event_name == 'release' && github.event.action == 'published') }}
+
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      - name: Docker meta
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
-          images: ghcr.io/pnx-si/geonature-atlas
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=ref,event=branch
             type=ref,event=tag
+
       - name: Login to GHCR
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         if: github.event_name != 'pull_request'
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Build and export
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v5
         with:
           context: .
           target: prod