Remove @Experimental annotation on QueryClient

[alex268]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.33%. Comparing base (74b39cc) to head (0bf7ca7).

Additional details and impacted files

@@                 Coverage Diff                  @@
##             release_v2.4.0     #564      +/-   ##
====================================================
- Coverage             63.35%   63.33%   -0.03%     
  Complexity             2477     2477              
====================================================
  Files                   334      334              
  Lines                 13947    13947              
  Branches               1409     1409              
====================================================
- Hits                   8836     8833       -3     
- Misses                 4479     4483       +4     
+ Partials                632      631       -1     

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