fix(deps): update all non-major dependencies

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
core-js	^3.9.0 -> ^3.9.1
eslint (source)	^7.20.0 -> ^7.21.0
eslint-plugin-vue (source)	^7.6.0 -> ^7.7.0

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Release Notes

zloirock/core-js

v3.9.1

Compare Source

• Added a workaround for Chrome 38-40 bug which does not allow to inherit symbols (incl. well-known) from DOM collections prototypes to instances, #​37
• Used NumericRangeIterator as toStringTag instead of RangeIterator in { Number, BigInt }.range iterator, per this PR
• TypedArray constructors marked as supported from Safari 14.0
• Updated compat data mapping for iOS Safari and Opera for Android

eslint/eslint

v7.21.0

Compare Source

• 3cd5440 Upgrade: @​eslint/eslintrc to 0.4.0 (#​14147) (Brandon Mills)
• c0b8c71 Upgrade: Puppeteer to 7.1.0 (#​14122) (Tim van der Lippe)
• 08ae31e New: Implement cacheStrategy (refs eslint/rfcs#​63) (#​14119) (Manu Chambon)
• 5e51fd2 Update: do not ignore symbolic links (fixes #​13551, fixes #​13615) (#​14126) (Pig Fang)
• 87c43a5 Chore: improve a few comments and fix typos (#​14125) (Tobias Nießen)
• e19c51e Sponsors: Sync README with website (ESLint Jenkins)
• b8aea99 Fix: pluralize 'line' to 'lines' in max-lines-per-function description (#​14115) (Trevin Hofmann)
• f5b53e2 Sponsors: Sync README with website (ESLint Jenkins)
• eee1213 Sponsors: Sync README with website (ESLint Jenkins)
• 5c4d7ea Sponsors: Sync README with website (ESLint Jenkins)

vuejs/eslint-plugin-vue

v7.7.0

Compare Source

✨ Enhancements

Changes in Rules:

• #​1444 Added ignorePublicMembers option to vue/no-unused-properties rule.

🐛 Bug Fixes

• #​1446 Fixed false negatives for member access with $ in vue/this-in-template rule.

⚙️ Updates

• #​1448 Upgrade vue-eslint-parser to v7.6.0.
  This makes the parser to case sensitive to the name used to determine the element when the file is SFC.

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All commits: v7.6.0 -> v7.7.0

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