Allow skipping proposing PR

Author: MoteHue

.github/workflows/overcloud-host-image-build.yml

@@ -18,6 +18,10 @@ on:
         options:
           - SMS Lab
           - Leafcloud
+      create_skc_pr:
+        description: Propose PR to SKC
+        type: boolean
+        default: true
     secrets:
       KAYOBE_VAULT_PASSWORD:
         required: true
@@ -402,10 +406,12 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+        if: inputs.create_skc_pr
 
       - name: Display link to update overcloud host image tags workflows
         run: |
           echo "::notice Overcloud host image promote workflow: https://github.com/stackhpc/stackhpc-kayobe-config/actions/workflows/update-overcloud-host-image-tags.yml"
+        if: inputs.create_skc_pr
 
       - name: Send message to Slack via Workflow Builder
         uses: slackapi/[email protected]
@@ -427,4 +433,4 @@ jobs:
           MESSAGE: "SKC overcloud host image build failed :sob:"
           RESULTS_URL: "N/A"
           WORKFLOW_URL: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
-        if: failure()
+        if: failure() && inputs.create_skc_pr