feat(linter): add jest/padding-around-test-blocks rule

[PeterCardenas]

Adds the jest/padding-around-test-blocks rule. The jest plugin opts for abstracting away all the padding-around-x rules with a helper, but for my purposes, I only needed this specific rule. My opinion is that we can investigate generalizing this rule to the other padding plugin as a followup, if there is pull for it.

Works towards #492

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #12985 will not alter performance

_{Comparing PeterCardenas:padding-around-test-blocks (391ac56) with main (a56f0da)}

Summary

✅ 34 untouched benchmarks

[PeterCardenas]

@Sysix resolved all your comments 🙏

[Copilot]

Pull Request Overview

This PR adds a new ESLint rule jest/padding-around-test-blocks that enforces blank lines before test blocks (test, it, fit, etc.) to improve code readability and organization. The rule includes auto-fix functionality and supports proper handling of comments between statements.

Key Changes:

• Implements the jest/padding-around-test-blocks linting rule with auto-fix support
• Adds comprehensive test coverage including edge cases with comments and nested describe blocks
• Integrates the new rule into the linter's rule registry

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
crates/oxc_linter/src/rules/jest/padding_around_test_blocks.rs	Main implementation of the padding rule with logic for detecting missing padding and auto-fixing
crates/oxc_linter/src/rules.rs	Registers the new rule in the linter's module system
crates/oxc_linter/src/snapshots/jest_padding_around_test_blocks.snap	Test snapshots showing expected diagnostic output for various violation cases

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[camc314]

thanks