Bump aiohttp from 0.16.3 to 3.7.4 in /frameworks/Python/api_hour (#7074)

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 0.16.3 to 3.7.4.
- [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/v0.16.3...v3.7.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frameworks/Python/api_hour/requirements.txt

@@ -1,4 +1,4 @@
-aiohttp==0.16.3
+aiohttp==3.7.4
 -e git+https://github.com/Eyepea/aiohttp_jinja2.git@c9675e5c1e1ee7741b30aea8d8fbffcde016c7a0#egg=aiohttp_jinja2-master
 aiopg==0.7.0
 -e git+https://github.com/Eyepea/API-Hour.git@577abbdcbb8cc2810dad46e260b338b15db4d0e3#egg=api_hour-master