Bump browserslist from 4.18.1 to 4.21.9

[dependabot]

Bumps browserslist from 4.18.1 to 4.21.9.

Changelog

Sourced from browserslist's changelog.

4.21.9

• Fixed Opera Mobile edge cases (by Steve Repsher).

4.21.8

• Fixed supports query and mobileToDesktop (by Steve Repsher).

4.21.7

• Fixed last queries for Android (by Steve Repsher).

4.21.6

• Fixed time queries with mobileToDesktop (by Steve Repsher).
• Fixed docs (by Tatsunori Uchino, Will Stone, and Dominik Pschenitschni).

4.21.5

• Fixed running Browserslist in browser environment.

4.21.4

• Updated Firefox ESR.

4.21.3

• Improved unknown region and unknown feature error (by Alexander Chabin).

4.21.2

• Updated Firefox ESR.

4.21.1

• Fixed parsing days in since query.

4.21

• IE 11 was added to dead and removed from defaults (by Albert Portnoy).
• Added browserslist.parse() to get config AST for analysis.
• Moved --update-db script to update-browserslist-db tool.
• Fixed Unicode BOM support in package.json.

4.20.4

• Fixed Opera in mobileToDesktop (by Pig Fang).

4.20.3

• Added Baidu to dead browsers (by Igor Lukanin).

4.20.2

• Fixed package.funding URL format.

4.20.1

• Fixed package.funding.
• Fixed docs (by Michael Lohmann).

4.20

• Added last 2 node versions and last 2 node major versions (by @​g-plane).

... (truncated)

Commits

• 28a05c9 Release 4.21.9 version
• 00c3de8 Update dependencies
• 9f595d6 Fix invalid results for Opera Mobile (#768)
• d05ffab Release 4.21.8 version
• 510ff6b Update dependencies
• 640a7ab Fix feature support queries with mobileToDesktop (#767)
• 312d763 Release 4.21.7 version
• f407895 Update dependencies
• 44df5bc Fix computation of last queries for Android (#765)
• 94a0fbe Release 4.21.6 version
• Additional commits viewable in compare view

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