Feat: add bot flagging for /bug comment

.github/workflows/exercise-ghapi.yaml

@@ -0,0 +1,33 @@
+name : exercise-ghapi
+on: issue_comment
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  ghapi-exercise:
+    if: (github.event.issue.pull_request != null) && contains(github.event.comment.body, '/bug')
+    runs-on: ubuntu-latest
+    steps:
+      - name: install dependencies
+        run: pip install ghapi
+
+      - name: see payload
+        run: echo "PAYLOAD:\n${PAYLOAD}\n"
+        env:
+          PAYLOAD: ${{ toJson(github.event) }}
+
+      - name: Make a comment
+        shell: python
+        run: |
+          import os
+          from ghapi.core import GhApi
+          owner,repo = os.environ['REPO'].split('/')
+          api = GhApi(owner=owner, repo=repo)
+          api.issues.add_labels(issue_number=os.environ['NUMBER'], labels=['bug'])
+        env:
+          NUMBER: ${{ github.event.issue.number }} 
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO: ${{ github.repository }}