Fix BlockingConnectionPool.from_url parsing of timeout in query args #2983

[r0ro]

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Description of change

Add "timeout" to URL_QUERY_ARGUMENT_PARSERS so that it is properly cast to float when calling urlparse

Fixes #2983

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5391c5f) 91.37% compared to head (63c84e6) 91.37%.
Report is 5 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2984      +/-   ##
==========================================
- Coverage   91.37%   91.37%   -0.01%     
==========================================
  Files         126      126              
  Lines       32617    32637      +20     
==========================================
+ Hits        29805    29823      +18     
- Misses       2812     2814       +2     

Files	Coverage Δ
redis/asyncio/connection.py	83.66% <ø> (ø)
redis/connection.py	82.31% <ø> (ø)
tests/test_asyncio/test_connection_pool.py	92.17% <100.00%> (+0.15%)	⬆️
tests/test_connection_pool.py	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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