feat: set status flag of discord webhook

.github/workflows/nightly.yaml

@@ -56,7 +56,7 @@ jobs:
     if: |
       needs.Secrets-Presence.outputs.HAS_GH_PAT
     strategy:
-      fail-fast: false
+      fail-fast: true
       matrix:
         test-def: [ { repo: "runtime-metamodel",    workflowfile: "ci.yaml" },
                     { repo: "gradleplugins",        workflowfile: "test.yaml" },
@@ -87,14 +87,16 @@ jobs:
     secrets: inherit
 
   Post-To-Discord:
-    needs: [ Publish-components, Determine-Version, Secrets-Presence ]
+    needs: [ Publish-Components, Determine-Version, Secrets-Presence ]
     if: "needs.Secrets-Presence.outputs.HAS_WEBHOOK && always()"
     runs-on: ubuntu-latest
     steps:
       - uses: sarisia/actions-status-discord@v1
         name: "Invoke discord webhook"
         with:
           webhook: ${{ secrets.DISCORD_WEBHOOK_GITHUB }}
+          # if the publishing is skipped, that means the preceding test run failed
+          status: ${{ needs.Publish-Components.result == 'skipped' && 'Failure' || needs.Publish-Components.result }}
           title: "Nightly Build"
           description: "Build and publish ${{ needs.Determine-Version.outputs.VERSION }}"
           username: GitHub Actions