Use REGISTRY_URL secret instead of REGISTRY variable

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/publish.yaml

@@ -64,7 +64,7 @@ jobs:
           load: true
           build-args: |
             FLUTTER_VERSION=${{ steps.version.outputs.flutter_version }}
-          tags: ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
+          tags: ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
 
       - name: Install Docker Scout
         run: |
@@ -73,7 +73,7 @@ jobs:
 
       - name: Docker Scout CVE Scan
         run: |
-          docker scout cves ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }} --only-severity critical,high
+          docker scout cves ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }} --only-severity critical,high
 
       - name: Build and push with attestations
         uses: docker/build-push-action@v5
@@ -87,8 +87,8 @@ jobs:
           build-args: |
             FLUTTER_VERSION=${{ steps.version.outputs.flutter_version }}
           tags: |
-            ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
-            ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.tag }}
+            ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
+            ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.tag }}
           labels: |
             org.opencontainers.image.title=${{ env.IMAGE_NAME }}
             org.opencontainers.image.description=${{ matrix.description }}

.gitea/workflows/scout.yaml

@@ -33,7 +33,7 @@ jobs:
       - name: Check if latest image exists
         id: should_run
         run: |
-          if docker manifest inspect ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-latest > /dev/null 2>&1; then
+          if docker manifest inspect ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-latest > /dev/null 2>&1; then
             echo "run=true" >> $GITHUB_OUTPUT
             echo "${{ matrix.variant }}-latest found, Scout compare will run"
           else
@@ -58,7 +58,7 @@ jobs:
           platforms: linux/amd64
           push: false
           load: true
-          tags: ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-pr-${{ github.event.pull_request.number }}
+          tags: ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-pr-${{ github.event.pull_request.number }}
 
       - name: Install Docker Scout
         if: steps.should_run.outputs.run == 'true'
@@ -69,4 +69,4 @@ jobs:
       - name: Docker Scout Compare
         if: steps.should_run.outputs.run == 'true'
         run: |
-          docker scout compare ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-pr-${{ github.event.pull_request.number }} --to ${{ vars.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-latest --ignore-unchanged --only-severity critical,high
+          docker scout compare ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-pr-${{ github.event.pull_request.number }} --to ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-latest --ignore-unchanged --only-severity critical,high