chore(deps): update to angular v21 rc

[json-derulo]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (43ab1de) to head (c187f39).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #901      +/-   ##
===========================================
- Coverage   100.00%   90.12%   -9.88%     
===========================================
  Files           23       26       +3     
  Lines          565      628      +63     
  Branches        83       88       +5     
===========================================
+ Hits           565      566       +1     
- Misses           0       60      +60     
- Partials         0        2       +2     

see 5 files with indirect coverage changes

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