Fix canary VERSION parameter (#2842)

.github/workflows/global-publish-canary.yaml

@@ -91,7 +91,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v2
         with:
@@ -101,14 +101,14 @@ jobs:
 
       # Normalization is needed because upper case characters are not allowed in the repository name
       # and the short sha is needed for image tagging
-      - name: Resolve parameters 
+      - name: Resolve parameters
         id: resolve_parameters
         run: |
           echo "INFO: Resolving short sha"
           echo "short_sha=$(git rev-parse --short ${{ github.ref }})" >> $GITHUB_OUTPUT
           echo "INFO: Normalizing repository name (lowercase)"
           echo "repository_owner=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
-      
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
 
@@ -124,7 +124,7 @@ jobs:
           context: .
           file: ./Dockerfile
           platforms: linux/amd64,linux/arm64
-          build-args: VERSION=canary-"${{ github.ref }}"
+          build-args: VERSION=canary-${{ steps.resolve_parameters.outputs.short_sha }}
           push: ${{ env.PUSH_TO_REGISTRIES }}
           tags: |
             ghcr.io/${{ steps.resolve_parameters.outputs.repository_owner }}/gha-runner-scale-set-controller:canary