refactor: Remove anymap

[marc2332]

Closes #993

[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 4 lines in your changes missing coverage. Please review.

Project coverage is 74.17%. Comparing base (cd7bb58) to head (8130ae7).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/native-core/src/lib.rs	81.25%	3 Missing ⚠️
crates/native-core-macro/src/lib.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1001   +/-   ##
=======================================
  Coverage   74.17%   74.17%           
=======================================
  Files         214      215    +1     
  Lines       24519    24535   +16     
=======================================
+ Hits        18186    18199   +13     
- Misses       6333     6336    +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles