add gpt code reviewer

.github/workflows/crgpt.yml

@@ -0,0 +1,21 @@
+name: Code Review GPT
+
+on:
+  pull_request:
+    types: [labeled, synchronize]
+
+jobs:
+  run_code_review:
+    if: contains(github.event.pull_request.labels.*.name, 'ready for review') && !github.event.pull_request.draft
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Code Review GPT
+        uses: mattzcarey/[email protected]
+        with:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+          MODEL: 'gpt-3.5-turbo'
+          GITHUB_TOKEN: ${{ github.token }}