Ping @saschanaz when update-core-deps fails

Closes microsoft#1282.

Author: saschanaz

.github/workflows/update-core-deps.yml

@@ -22,7 +22,11 @@ jobs:
       - run: ncu -u
       - run: npm i
       - run: git restore package.json
-      - run: npm run build && npm run baseline-accept
+      - id: build
+        run: npm run build && npm run baseline-accept
+        continue-on-error: true
+      - if: ${{ steps.build.outcome == 'failure' }}
+        run: node deploy/onUpdateFailure.js
       - id: git-diff
         run: git diff --quiet HEAD baselines
         continue-on-error: true

deploy/onUpdateFailure.js

@@ -0,0 +1,10 @@
+import { Octokit } from "@octokit/rest";
+
+const authToken = process.env.GITHUB_TOKEN || process.env.GITHUB_API_TOKEN;
+const octokit = new Octokit({ auth: authToken });
+await octokit.issues.createComment({
+  owner: "microsoft",
+  repo: "TypeScript-DOM-lib-generator",
+  issue_number: 1282,
+  body: "Hi @saschanaz, kindly pinging you as the 'Update core dependencies' job failed today.",
+});