CI: remove aiobotocore pin
Closes https://github.com/pandas-dev/pandas/issues/44311
The doc build is passing.  Hmm, not sure what went wrong there ;) This is odd, but the install requirements failure is legit. Installing asv==0.5.0 locally with pip is failing as well. Not sure why we are pulling an older version here But the strange thing is that it is not failing on main? maybe some pip cache related issue? It doesn't explain why it starts to happen now, but we should probably pin to 0.5.1 since that fixed the issue with requirements-dev.txt: https://github.com/airspeed-velocity/asv/commit/516e283a7e7d835e161ac91f4e5e2e2c501a6192 thx @jorisvandenbossche 