Bump aiohttp from 3.8.1 to 3.8.5 in /examples/research_projects/decision_transformer (#24954)

Bump aiohttp in /examples/research_projects/decision_transformer

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 3.8.1 to 3.8.5.
- [Release notes](https://github.com/aio-libs/aiohttp/releases)
- [Changelog](https://github.com/aio-libs/aiohttp/blob/v3.8.5/CHANGES.rst)
- [Commits](https://github.com/aio-libs/aiohttp/compare/v3.8.1...v3.8.5

)

---
updated-dependencies:
- dependency-name: aiohttp
  dependency-type: direct:production
...
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examples/research_projects/decision_transformer/requirements.txt

 absl-py==1.0.0
-aiohttp==3.8.1
+aiohttp==3.8.5
 aiosignal==1.2.0
 alembic==1.7.7
 appdirs==1.4.4