Add image digest as output

.gitea/workflows/rust-kubernetes.yaml

@@ -8,6 +8,7 @@ on:
         type: boolean
       upload_manifests:
         description: Upload manifest files to OCI repository
+        default: true
         type: boolean
       webhook_url:
         description: Webhook to call after build is completed
@@ -48,10 +49,12 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Install kustomize
+        if: inputs.upload_manifests == true
         run: |
           curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"  | bash
 
       - name: Setup Flux CLI
+        if: inputs.upload_manifests == true
         uses: https://github.com/fluxcd/flux2/action@main
         with:
           version: v2.5.0