chore(deps): update dependency grunt-eslint to v26

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
grunt-eslint	24.3.0 -> 26.0.0

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Release Notes

sindresorhus/grunt-eslint (grunt-eslint)

v26.0.0

Compare Source

Breaking

• Require Node.js 20 e677dd9
• It now outputs to console even when outputFile option is specified. Specify silent: true to get the old behavior.

Improvements

• Add support for dual console and file output 857b19b
• Add support for extends option 838335b
• Document flags option for experimental ESLint features c495bd1

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v25.0.0

Compare Source

Breaking

• Require Node.js 18 (#​175) 81834b4
• Flat config is now required by default
  • If you want to use non-flat config, you need to pass the ESLINT_USE_FLAT_CONFIG environment variable

Improvements

• Update to ESLint 9 (#​175) 81834b4
• Support flat config (#​175) 81834b4

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