Bump uglifier from 4.2.0 to 4.2.1

[dependabot[bot]]

Bumps uglifier from 4.2.0 to 4.2.1.

Changelog

Sourced from uglifier's changelog.

4.2.1 (22 September 2024)

• fix Ruby 3.4 compatiblity, drop Ruby 2.3 and older support (#195)
• fix typos (#194)

Commits

• 959b740 Bump version to 4.2.1
• 5a6a6f4 Update changelog
• f7ee1a2 Merge branch 'drop-base64'
• b808f14 Merge pull request #194 from kianmeng/fix-typos
• 46b75e4 Bump required ruby version to 2.4
• 81fbc31 Merge pull request #196 from lautis/ci-ruby-versions
• 030a33e Use released version of alaska runtime to run tests
• 15d317d Update build matrix
• 89c6136 Drop base64 gem from dependency
• 0947f7c Merge pull request #191 from SimenB/master-1
• Additional commits viewable in compare view

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