perf: warn case sensitive plugin

[ahabhgk]

Summary

For 9000 case (without case sensitive path, which is the common case in development), 8ms -> 4ms

And now this plugin will increase 1ms per 2000 modules, which is acceptable for now, we can consider to move it as production only plugin by default when it becomes the bottleneck

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[ahabhgk]

!bench

[rspack-bot]

⏳ Triggered benchmark: Open

[netlify]

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[ahabhgk]

!bench

[rspack-bot]

📝 Benchmark detail: Open

Name	Base (2024-08-16 218bda0)	Current	Change
10000_development-mode + exec	2.35 s ± 21 ms	2.35 s ± 28 ms	-0.20 %
10000_development-mode_hmr + exec	713 ms ± 13 ms	702 ms ± 11 ms	-1.57 %
10000_production-mode + exec	3.02 s ± 38 ms	3.05 s ± 36 ms	+1.12 %
arco-pro_development-mode + exec	1.91 s ± 68 ms	1.89 s ± 58 ms	-1.31 %
arco-pro_development-mode_hmr + exec	439 ms ± 2 ms	437 ms ± 1.8 ms	-0.59 %
arco-pro_production-mode + exec	3.48 s ± 110 ms	3.5 s ± 94 ms	+0.80 %
arco-pro_production-mode_generate-package-json-webpack-plugin + exec	3.52 s ± 98 ms	3.54 s ± 98 ms	+0.54 %
threejs_development-mode_10x + exec	1.71 s ± 14 ms	1.72 s ± 22 ms	+0.53 %
threejs_development-mode_10x_hmr + exec	823 ms ± 9.3 ms	818 ms ± 9.2 ms	-0.57 %
threejs_production-mode_10x + exec	5.53 s ± 39 ms	5.56 s ± 38 ms	+0.44 %

[hardfist]

this need version field, otherwise it can't be published