[CHORE] Add native executor to CI

[colin-ho]

Enables native executor in CI (just unit tests for now). Any tests that fail because the native executor doesn't support it yet is marked as skip. The skips will be incrementally removed as functionality gets added.

[codspeed-hq]

CodSpeed Performance Report

Merging #2855 will improve performances by ×2.3

_{Comparing colin/native_executor_ci (d824109) with main (6766955)}

Summary

⚡ 1 improvements
✅ 15 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	colin/native_executor_ci	Change
⚡	test_count[1 Small File]	23.7 ms	10.2 ms	×2.3

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.40%. Comparing base (6766955) to head (d824109).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2855      +/-   ##
==========================================
+ Coverage   64.10%   65.40%   +1.29%     
==========================================
  Files        1005     1005              
  Lines      113099   113099              
==========================================
+ Hits        72505    73972    +1467     
+ Misses      40594    39127    -1467     

see 38 files with indirect coverage changes

[desmondcheongzx]

Looks good, thanks!