fix(ci): Ping myself in a comment on flake.lock PRs

.github/workflows/update-flake.yml

@@ -16,8 +16,16 @@ jobs:
       run: nix flake update
     - name: Create Pull Request
       uses: peter-evans/create-pull-request@v6
+      id: create-pr
       with:
         commit-message: "flake: update dependencies"
         title: "[automation] update flake dependencies"
         branch: "automation/update-flake-dependencies"
         token: ${{ secrets.UPDATE_FLAKE_TOKEN }}
+    - name: Ping me in a comment on the PR
+      run: |
+        PR_NUMBER=${{ steps.create-pr.outputs.pull-request-number }}
+        COMMENT="Ping @mrjones2014"
+        GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
+        COMMENT_URL="https://api.github.com/repos/${{ github.repository }}/issues/${PR_NUMBER}/comments"
+        curl -s -H "Authorization: token ${GITHUB_TOKEN}" -X POST $COMMENT_URL -d "{\"body\":\"$COMMENT\"}"