Bump opensearch-py[async] from 2.6.0 to 2.7.1

Bumps [opensearch-py[async]](https://github.com/opensearch-project/opensearch-py) from 2.6.0 to 2.7.1.
- [Release notes](https://github.com/opensearch-project/opensearch-py/releases)
- [Changelog](https://github.com/opensearch-project/opensearch-py/blob/main/CHANGELOG.md)
- [Commits](opensearch-project/opensearch-py@v2.6.0...v2.7.1)

---
updated-dependencies:
- dependency-name: opensearch-py[async]
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

setup.py

@@ -25,7 +25,7 @@
         "aiofiles==24.1.0",
         "aiohttp[speedups]==3.10.2",
         "elasticsearch[async]==8.14.0",
-        "opensearch-py[async]==2.6.0",
+        "opensearch-py[async]==2.7.1",
         "boto3>=1.34.144,<1.35.0",
         "fastapi==0.112.0",
         "uvicorn[standard]==0.30.5",