Update dependency eslint-plugin-vue to v9.21.0

[pecoret-bot]

This PR contains the following updates:

Package	Type	Update	Change
eslint-plugin-vue (source)	devDependencies	minor	9.20.1 -> 9.21.0

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Release Notes

vuejs/eslint-plugin-vue (eslint-plugin-vue)

v9.21.0

Compare Source

✨ Enhancements

• #​2325 Added vue/require-explicit-slots rule that require slots to be explicitly defined with defineSlots.
• #​2367 Added vue/no-restricted-v-on rule that disallow specific argument in v-on.
• #​2381 Added sameNameShorthand option to vue/v-bind-style rule.

⚙️ Updates

• #​2379 Upgraded vue-eslint-parser to v9.4.2.
  • Fixed false positive with camelCase v-bind same-name shorthand in vue/no-unused-property.

Full Changelog: vuejs/eslint-plugin-vue@v9.20.1...v9.21.0

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