Bump aiohttp from 3.8.5 to 3.9.0 (#9)

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 3.8.5 to 3.9.0.
- [Release notes](https://github.com/aio-libs/aiohttp/releases)
- [Changelog](https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst)
- [Commits](aio-libs/aiohttp@v3.8.5...v3.9.0)

---
updated-dependencies:
- dependency-name: aiohttp
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 slack-bolt==1.18.0
 google-cloud-storage==2.7.0
 uvicorn==0.20.0
-aiohttp==3.8.5
+aiohttp==3.9.0
 starlette==0.28.0
 python-json-logger==2.0.4