Make sure the workflow doesn't fail if the triggering comment was deleted.

Author: bluelinden

.github/workflows/comment-!build-commands.yml

@@ -101,9 +101,20 @@ jobs:
               comment_id: ${{ github.event.comment.id }},
               owner: context.repo.owner,
               repo: context.repo.repo,
-              body: '!build ([build link](https://github.com/GraphiteEditor/Graphite/actions/runs' + context.runId + '))'
+              body: '!build ([build link](https://github.com/GraphiteEditor/Graphite/actions/runs/' + context.runId + '))'
+            });
+      
+      - name: ❗ Post fallback comment if OG deleted
+        if: ${{ failure() }}
+        uses: actions/github-script@v6
+        with:
+          script: |
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: 'A build was requested, [building...](https://github.com/GraphiteEditor/Graphite/actions/runs/' + context.runId + ')'
             });
-
 
       - name: 🌐 Build Graphite web code
         env: