Bump aiohttp from 3.9.0b0 to 3.9.0

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 3.9.0b0 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](https://github.com/aio-libs/aiohttp/compare/v3.9.0b0...v3.9.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,7 +1,7 @@
 jsonschema>=4.17.3,<4.18; python_version >= '3.7' # v4.17.3 is the last version to support Python 3.7
 jsonschema==3.2.0; python_version < '3.7'  # v3.2.0 is the last version to support Python 3.6
 aiohttp>=3.8.5,<3.9; python_version < '3.12'
-aiohttp==3.9.0b0; python_version == '3.12'
+aiohttp==3.9.0; python_version == '3.12'
 aiohttp-cors>=0.7.0,<0.8
 aiofiles>=23.2.1,<23.3; python_version >= '3.7'
 aiofiles==0.8.0; python_version < '3.7'  # v0.8.0 is the last version to support Python 3.6