Fix main publish workflow templating

Author: integrii

.github/workflows/publish.yaml

@@ -24,24 +24,24 @@ jobs:
       - name: Log in to Docker Hub
         uses: docker/login-action@v3
         with:
-          username: ${ secrets.DOCKER_HUB_USER }
-          password: ${ secrets.DOCKER_HUB_PAT }
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_PAT }}
 
       - name: Set image tag
         run: |
           SHORT_SHA=$(git rev-parse --short HEAD)
           IMAGE_TAG="kuberhealthy/ssh-check:${SHORT_SHA}"
-          echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV
+          echo "IMAGE_TAG=${{IMAGE_TAG}}" >> $GITHUB_ENV
 
       - name: Build and push
         uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
           push: true
-          tags: ${ env.IMAGE_TAG }
+          tags: ${{ env.IMAGE_TAG }}
 
       - name: Publish summary
         run: |
           echo "Images pushed:" >> "$GITHUB_STEP_SUMMARY"
-          echo "- ${ env.IMAGE_TAG }" >> "$GITHUB_STEP_SUMMARY"
+          echo "- ${{ env.IMAGE_TAG }}" >> "$GITHUB_STEP_SUMMARY"