Update dependency com.google.android.gms:play-services-auth to v21.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.android.gms:play-services-auth	21.2.0 -> 21.3.0

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.65%. Comparing base (e748221) to head (f65d78b).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3810      +/-   ##
===========================================
- Coverage    41.66%   41.65%   -0.01%     
===========================================
  Files          450      450              
  Lines        11878    11878              
  Branches      2592     2592              
===========================================
- Hits          4949     4948       -1     
  Misses        6086     6086              
- Partials       843      844       +1     

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