Fix build

Author: DRSchlaubi

.github/workflows/build.yaml

@@ -46,7 +46,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-${{ matrix.arch }}
+          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.sha }}-${{ matrix.arch }}
           platforms: ${{ matrix.platform }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
@@ -63,16 +63,16 @@ jobs:
 
       - name: Create and push multi-arch manifest
         run: |
-          docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }} \
-            --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-amd64 \
-            --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-arm64
+          docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }} \
+            --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.sha }}-amd64 \
+            --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.sha }}-arm64
           
-          docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}
+          docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}
 
           # Optionally tag 'latest' on main
           if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
             docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest \
-              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}-amd64 \
-              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}-arm64
+              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}-amd64 \
+              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}-arm64
             docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
           fi