chore: Update ESLint to v9 to match the latest version of this package

[csandman]

This is a dependency update to make the ESLint config of v5 match the upgraded config in v6. Nothing too crazy.

[bolt-new-by-stackblitz]

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[github-actions]

📊 Package size report   -0.09%↓

File	Before	After
dist/index.js	32.5 kB	0.03%↑32.5 kB
dist/index.mjs	30.9 kB	0.03%↑30.9 kB
package.json	3.2 kB	-4.8%↓3.0 kB
Total (Includes all files)	155.0 kB	-0.09%↓154.9 kB
Tarball size	31.1 kB	-0.14%↓31.1 kB

Unchanged files

File	Size
dist/index.d.mts	19.9 kB
dist/index.d.ts	19.9 kB
LICENSE.md	1.1 kB
README.md	47.5 kB

_{🤖 This report was automatically generated by pkg-size-action}