devops: docker-hub release version

.github/workflows/release.yml

@@ -50,13 +50,15 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Set tag on env
+      - name: Set tag on output
         id: vars
-        run: echo ::set-env name=RELEASE_VERSION::$(echo ${GITHUB_REF#refs/*/})
+        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
 
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2
+        env:
+          RELEASE_VERSION: ${{ steps.vars.outputs.tag }}
         with:
           context: ./
           file: ./Dockerfile