refactor(biome_parser): use enumflags2 for TokenFlag and remove bitflags

[Javimtib92]

Summary

Closes #3157

Adds enumflags2 to biome_parser TokenFlag and removes bitflags dependency from all Cargo.toml files where it is referenced.

Test Plan

I ran cargo t on the root and all tests passed. Current CI should pass

[dyc3]

Looks good! Great to be able to squeeze this in before v1.9.0

[codspeed-hq]

CodSpeed Performance Report

Merging #3802 will degrade performances by 7.04%

_{Comparing Javimtib92:refactor/remove-bitflags (1bdd8fe) with main (31d43b7)}

Summary

❌ 1 regressions
✅ 106 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	Javimtib92:refactor/remove-bitflags	Change
❌	db_17847247775464589309.json[cached]	13 ms	14 ms	-7.04%

[Javimtib92]

Looks good! Great to be able to squeeze this in before v1.9.0

Great! Thanks for all the reviews 😊