Add tags for latest and previous images

Author: toothstone

.github/workflows/build-docker.yml

@@ -36,6 +36,10 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest
+            type=ref,event=branch
+            type=sha
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v5