chore(deps): update dependency eslint to v9.21.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint (source)	9.19.0 -> 9.21.0

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Release Notes

eslint/eslint (eslint)

v9.21.0

Compare Source

Features

• 418717f feat: introduce new deprecated types for rules (#​19238) (fnx)
• 5c5b802 feat: Add --ext CLI option (#​19405) (Milos Djermanovic)

Bug Fixes

• db5340d fix: update missing plugin message template (#​19445) (Milos Djermanovic)
• d8ffdd4 fix: do not exit process on rule crash (#​19436) (Francesco Trotta)

Documentation

• c5561ea docs: Update README (GitHub Actions Bot)
• 80b0485 docs: replace var with let and const in rule example (#​19434) (Tanuj Kanti)
• f67d5e8 docs: Update README (GitHub Actions Bot)
• 75afc61 docs: Update README (GitHub Actions Bot)
• 0636cab docs: Update Eleventy from v2 to v3 (#​19415) (Amaresh S M)
• dd7d930 docs: Update README (GitHub Actions Bot)

Chores

• a8c9a9f chore: update @eslint/eslintrc and @eslint/js (#​19453) (Francesco Trotta)
• 265e0cf chore: package.json update for @​eslint/js release (Jenkins)
• 3401b85 test: add test for Rule.ReportDescriptor type (#​19449) (Francesco Trotta)
• e497aa7 chore: update rewrite dependencies (#​19448) (Francesco Trotta)
• dab5478 chore: better error message for missing plugin in config (#​19402) (Tanuj Kanti)
• ebfe2eb chore: set js language for bug report issue config block (#​19439) (Josh Goldberg ✨)
• 5fd211d test: processors can return subpaths (#​19425) (Milos Djermanovic)

v9.20.1

Compare Source

Bug Fixes

• 274f054 fix: fix RuleContext type (#​19417) (Francesco Trotta)

Documentation

• fe3ccb2 docs: allow typing in search box while dropdown is open (#​19424) (Amaresh S M)
• 93c78a5 docs: Add instructions for pnpm compat (#​19422) (Nicholas C. Zakas)
• b476a93 docs: Fix Keyboard Navigation for Search Results (#​19416) (Amaresh S M)
• ccb60c0 docs: Update README (GitHub Actions Bot)

v9.20.0

Compare Source

Features

• e89a54a feat: change behavior of inactive flags (#​19386) (Milos Djermanovic)

Bug Fixes

• 91d4d9f fix: Bring types in sync with @​eslint/core (#​19157) (Nicholas C. Zakas)
• fa25c7a fix: Emit warning when empty config file is used (#​19399) (Nicholas C. Zakas)
• 31a9fd0 fix: Clearer error message for wrong plugin format (#​19380) (Nicholas C. Zakas)
• 61d99e3 fix: Better error message for unserializable parser (#​19384) (Nicholas C. Zakas)
• db1b9a6 fix: Ensure module scope is checked for references in consistent-this (#​19383) (Nicholas C. Zakas)
• 8bcd820 fix: arrow-body-style crash with single-token body (#​19379) (Milos Djermanovic)

Documentation

• b7012c8 docs: rewrite examples with var using let and const (#​19407) (Mueez Javaid Hashmi)
• 6406376 docs: Update README (GitHub Actions Bot)
• 350f2b9 docs: rewrite some examples with var using let and const (#​19404) (Mueez Javaid Hashmi)
• 93c325a docs: rewrite examples with var using let and const (#​19398) (Mueez Javaid Hashmi)
• 56ff404 docs: replace var with let or const in rules docs (#​19396) (Daniel Harbrueger)
• 4053226 docs: change sourceType in no-eval examples (#​19393) (Milos Djermanovic)
• 1324af0 docs: replace var with let and const in rules docs (#​19392) (Daniel Harbrueger)
• 8b87e00 docs: replace var with const and let in rules (#​19389) (Tanuj Kanti)
• 758c66b docs: Explain what frozen rules mean (#​19382) (Nicholas C. Zakas)
• 0ef8bb8 docs: additional checks for rule examples (#​19358) (Milos Djermanovic)
• 58ab2f6 docs: fix order of installation steps in getting started (#​19326) (Tanuj Kanti)

Chores

• 979097a chore: upgrade @​eslint/js@​9.20.0 (#​19412) (Francesco Trotta)
• 031734e chore: package.json update for @​eslint/js release (Jenkins)
• d4c47c3 test: avoid empty config warning in test output (#​19408) (Milos Djermanovic)
• 67dd82a chore: update dependency @​eslint/json to ^0.10.0 (#​19387) (renovate[bot])
• 15ac0e1 chore: add permissions: read-all to stale.yml workflow (#​19374) (Josh Goldberg ✨)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.86%. Comparing base (8d46860) to head (215a6cb).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2457   +/-   ##
=======================================
  Coverage   77.86%   77.86%           
=======================================
  Files          25       25           
  Lines         768      768           
  Branches       97       97           
=======================================
  Hits          598      598           
  Misses        162      162           
  Partials        8        8           

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