Fix TAG for publish job

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Author: alexellis

.github/workflows/publish.yaml

@@ -59,7 +59,7 @@ jobs:
           platforms: linux/amd64,linux/arm64,linux/arm/v7
           tags: |
             ghcr.io/${{ env.REPO_OWNER }}/of-watchdog:${{ github.sha }}
-            ghcr.io/${{ env.REPO_OWNER }}/of-watchdog:${{ steps.get_tag.outputs.TAG }}
+            ghcr.io/${{ env.REPO_OWNER }}/of-watchdog:${{ env.TAG }}
             ghcr.io/${{ env.REPO_OWNER }}/of-watchdog:latest
 
       - name: Upload release binaries