[MNT] Created workflow for closing "AI Spam" pull requests (#2750)

* added ai_spam

* Automatic `pre-commit` fixes

* fixed comment text

* fixed comment text

* updated to python 3.11

---------

Co-authored-by: Ramana-Raja <ramanarajakesavaraja@gamil.com>

Author: Ramana-Raja

.github/utilities/ai_spam.py

@@ -0,0 +1,27 @@
+"""Script for handling AI Spam label on pull requests.
+
+Triggered when AI Spam label is added to a PR,
+it adds a comment and closes the PR.
+"""
+
+import json
+import os
+
+from github import Github
+
+context_dict = json.loads(os.getenv("CONTEXT_GITHUB"))
+
+repo_name = context_dict["repository"]
+g = Github(os.getenv("GITHUB_TOKEN"))
+repo = g.get_repo(repo_name)
+pr_number = context_dict["event"]["pull_request"]["number"]
+pr = repo.get_pull(pr_number)
+label_name = context_dict["event"]["label"]["name"]
+
+if label_name == "AI Spam":
+    comment_body = (
+        "This pull request has been flagged with the **AI Spam** label.\n\n"
+        "This PR is being closed."
+    )
+    pr.create_issue_comment(comment_body)
+    pr.edit(state="closed")

.github/workflows/ai_spam.yml

@@ -0,0 +1,42 @@
+name: AI Spam Detection On PR
+
+on:
+  pull_request:
+    types: [labeled]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  ai-spam-present:
+    if: ${{ github.event.label.name == 'AI Spam' }}
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Create app token
+        uses: actions/create-github-app-token@v1
+        id: app-token
+        with:
+          app-id: ${{ vars.PR_APP_ID }}
+          private-key: ${{ secrets.PR_APP_KEY }}
+
+      - name: Checkout main
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: .github/utilities
+
+      - name: Setup Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install PyGithub
+        run: pip install -Uq PyGithub
+
+      - name: Process AI Spam
+        id: handle_spam
+        run: python .github/utilities/ai_spam.py
+        env:
+          CONTEXT_GITHUB: ${{ toJson(github) }}
+          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}