used github updated at as tag

.github/workflows/docker-image.yml

@@ -21,25 +21,24 @@ jobs:
  name: Build and Push
  runs-on: ubuntu-latest
  steps:
- - name: Set current date as env variable
- run: echo "NOW=$(date +'%Y-%m-%dT%H:%M:%S')" >> $GITHUB_ENV
- - name: Echo current date
- run: echo $NOW
  - name: Set up QEMU
  uses: docker/setup-qemu-action@v3
+
  - name: Set up Docker Buildx
  uses: docker/setup-buildx-action@v3
+
  - name: Login to Harbor
  uses: docker/login-action@v2
  with:
  registry: https://${{ secrets.HARBOR_REGISTRY_URL }}
  username: ${{ secrets.HARBOR_REGISTRY_USERNAME }}
  password: ${{ secrets.HARBOR_REGISTRY_PASSWORD }}
+
  - name: Build and push
  uses: docker/build-push-action@v5
  with:
  push: true
- tags: ${{ secrets.HARBOR_REGISTRY_URL }}/baeda/timeseries-inspector:$NOW
+ tags: ${{ secrets.HARBOR_REGISTRY_URL }}/baeda/timeseries-inspector:${{ github.event.repository.updated_at}}
 
 #on:
 # push: