chore(deps): bump aiohttp from 3.7.4 to 3.8.5 in /testutils/poc

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 3.7.4 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/v3.7.4...v3.8.5)

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

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

testutils/poc/requirements.txt

@@ -1,3 +1,3 @@
-aiohttp==3.7.4
+aiohttp==3.8.5
 requests==2.31.0
 click==7.0