Drop loop kwarg from async_timeout.timeout

[bdraco]

• async_timeout 4.0.0 drops the loop= kwarg and will fail if its passed

[codecov]

Codecov Report

Merging #424 (90efb33) into master (377fad8) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #424   +/-   ##
=======================================
  Coverage   96.53%   96.53%           
=======================================
  Files          42       42           
  Lines        8336     8336           
=======================================
  Hits         8047     8047           
  Misses        289      289           

Impacted Files	Coverage Δ
homematicip/aio/connection.py	84.29% <100.00%> (ø)

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