Update codecov.yml to fit latest configure format

[junw-33455432]

[codecov[bot]]

Codecov Report

Base: 74.07% // Head: 74.07% // No change to project coverage :thumbsup:

Coverage data is based on head (b9bd081) compared to base (75c51bc). Patch has no changes to coverable lines.

Additional details and impacted files

@@                 Coverage Diff                  @@
##           g11n-angular-client    #1830   +/-   ##
====================================================
  Coverage                74.07%   74.07%           
====================================================
  Files                       27       27           
  Lines                     2037     2037           
  Branches                   764      764           
====================================================
  Hits                      1509     1509           
  Misses                     330      330           
  Partials                   198      198           

Flag	Coverage Δ
coverage	74.07% <ø> (ø)

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