add bitbucket pipeline

pr_agent/servers/bitbucket_pipeline_runner.py

@@ -0,0 +1,16 @@
+import os
+from pr_agent.agent.pr_agent import PRAgent
+import os
+from pr_agent.tools.pr_reviewer import PRReviewer
+import asyncio
+
+async def run_action():
+    pull_request_id = os.environ.get("BITBUCKET_PR_ID", '')
+    slug = os.environ.get("BITBUCKET_REPO_SLUG", '')
+    workspace = os.environ.get("BITBUCKET_WORKSPACE", '')
+    if pull_request_id and slug and workspace:
+        pr_url = f"https://bitbucket.org/{workspace}/{slug}/pull-requests/{pull_request_id}"
+        await PRReviewer(pr_url).run()
+
+if __name__ == "__main__":
+    asyncio.run(run_action())