Update aiohttp requirement from ~=3.8.5 to ~=3.8.6 in /code/function

Updates the requirements on [aiohttp](https://github.com/aio-libs/aiohttp) to permit the latest version.
- [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...v3.8.6)

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

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

Author: dependabot[bot]

code/function/requirements.txt

@@ -6,6 +6,6 @@
 azure-functions~=1.17.0
 fastapi~=0.103.2
 pydantic-settings~=2.0.3
-aiohttp~=3.8.5
+aiohttp~=3.8.6
 opentelemetry-instrumentation-fastapi==0.41b0
 azure-monitor-opentelemetry-exporter==1.0.0b17