Document that BLE001 supports both BaseException and Exception

[rhoban13]

Summary

Document that flake8-blind-except supports Exception as well as BaseException.

Test Plan

Locally ran mkdocs.

[rhoban13]

Motivated by my confusion in #970 (comment)

[codspeed-hq]

CodSpeed Performance Report

Merging #12788 will improve performances by 4.15%

_{Comparing rhoban13:document_blind_except_supports_Exception (ee59439) with main (a176679)}

Summary

⚡ 1 improvements
✅ 31 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	rhoban13:document_blind_except_supports_Exception	Change
⚡	linter/default-rules[pydantic/types.py]	1.9 ms	1.8 ms	+4.15%

[github-actions]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

[MichaReiser]

Thanks!