create ai_reviewer workflow (#415)

* add ai_reviewer.yml

.github/workflows/ai_reviewer.yml

@@ -0,0 +1,25 @@
+name: Code Review GPT
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+    branches: [master]
+
+jobs:
+  run_code_review:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Code Review GPT
+        uses: mattzcarey/code-review-gpt@v0.1.8
+        with:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+          MODEL: 'gpt-4o'
+          GITHUB_TOKEN: ${{ github.token }}
+
+