chore(deps): update core tooling

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
eslint (source)	^9.39.2 → ^9.39.4
prettier (source)	^3.8.0 → ^3.9.4

---

Release Notes

eslint/eslint (eslint)

v9.39.4

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Bug Fixes

• f18f6c8 fix: update dependency minimatch to ^3.1.5 (#​20564) (Milos Djermanovic)
• a3c868f fix: update dependency @​eslint/eslintrc to ^3.3.4 (#​20554) (Milos Djermanovic)
• 234d005 fix: minimatch security vulnerability patch for v9.x (#​20549) (Andrej Beles)
• b1b37ee fix: update ajv to 6.14.0 to address security vulnerabilities (#​20538) (루밀LuMir)

Documentation

• 4675152 docs: add deprecation notice partial (#​20520) (Milos Djermanovic)

Chores

• b8b4eb1 chore: update dependencies for ESLint v9.39.4 (#​20596) (Francesco Trotta)
• 71b2f6b chore: package.json update for @​eslint/js release (Jenkins)
• 1d16c2f ci: pin Node.js 25.6.1 (#​20563) (Milos Djermanovic)

v9.39.3

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Bug Fixes

• 791bf8d fix: restore TypeScript 4.0 compatibility in types (#​20504) (sethamus)

Chores

• 8594a43 chore: upgrade @​eslint/js@​9.39.3 (#​20529) (Milos Djermanovic)
• 9ceef92 chore: package.json update for @​eslint/js release (Jenkins)
• af498c6 chore: ignore /docs/v9.x in link checker (#​20453) (Milos Djermanovic)

prettier/prettier (prettier)

v3.9.4

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v3.9.3

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v3.9.2

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v3.9.1

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v3.9.0

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diff

🔗 Release Notes

v3.8.5

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v3.8.4

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diff

Markdown: Fix blank lines between list items and nested sub-lists being removed in Markdown/MDX (#​17746 by @​byplayer)

Prettier was removing blank lines between list items and their nested sub-lists, converting loose lists into tight lists and changing their semantic meaning.

<!-- Input -->
- a

  - b

- c

  - d

<!-- Prettier 3.8.3 -->
- a
  - b
- c
  - d

<!-- Prettier 3.8.4 -->
- a

  - b

- c

  - d

v3.8.3

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diff

SCSS: Prevent trailing comma in if() function (#​18471 by @​kovsu)

// Input
$value: if(sass(false): 1; else: -1);

// Prettier 3.8.2
$value: if(
  sass(false): 1; else: -1,
);

// Prettier 3.8.3
$value: if(sass(false): 1; else: -1);

v3.8.2

Compare Source

diff

Angular: Support Angular v21.2 (#​18722, #​19034 by @​fisker)

Exhaustive typechecking with @default never;

<!-- Input -->
@&#8203;switch (foo) {
  @&#8203;case (1) {}
  @&#8203;default never;
}

<!-- Prettier 3.8.1 -->
SyntaxError: Incomplete block "default never". If you meant to write the @&#8203; character, you should use the "&#&#8203;64;" HTML entity instead. (3:3)

<!-- Prettier 3.8.2 -->
@&#8203;switch (foo) {
  @&#8203;case (1) {}
  @&#8203;default never;
}

arrow function and instanceof expressions.

<!-- Input -->
@&#8203;let fn = (a) =>        a?    1:2;

{{ fn ( a         instanceof b)}}

<!-- Prettier 3.8.1 -->
@&#8203;let fn = (a) =>        a?    1:2;

{{ fn ( a         instanceof b)}}

<!-- Prettier 3.8.2 -->
@&#8203;let fn = (a) => (a ? 1 : 2);

{{ fn(a instanceof b) }}

---

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