[BUG] Fixes regexp_replace expression

[ConeyLiu]

regexp_replace should set regex to True

[codspeed-hq]

CodSpeed Performance Report

Merging #3306 will degrade performances by 17.6%

_{Comparing ConeyLiu:fixes-regexp-replace (71991af) with main (84db665)}

Summary

⚡ 2 improvements
❌ 1 regressions
✅ 14 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	ConeyLiu:fixes-regexp-replace	Change
❌	test_count[1 Small File]	3.3 ms	4 ms	-17.6%
⚡	test_iter_rows_first_row[100 Small Files]	421.4 ms	293 ms	+43.83%
⚡	test_show[100 Small Files]	32.7 ms	24 ms	+36.04%