Update owo-colors requirement from 3.5.0 to 4.2.1

[dependabot]

Updates the requirements on owo-colors to permit the latest version.

Release notes

Sourced from owo-colors's releases.

owo-colors 4.2.1

Fixed

• Fixed a couple of bugs while rendering custom colors (#144). Thanks https://github.com/MiguelValentine for your first contribution!

#144: owo-colors/owo-colors#144

Changelog

Sourced from owo-colors's changelog.

4.2.1 - 2025-05-15

Fixed

• Fixed a couple of bugs while rendering custom colors (#144). Thanks https://github.com/MiguelValentine for your first contribution!

#144: owo-colors/owo-colors#144

4.2.0 - 2025-02-22

Added

• Style::prefix_formatter and Style::suffix_formatter return Display formatters for the prefix and the suffix of a style, respectively.
• All the *Display types now have an into_styled function that converts those types into a Styled, erasing type parameters.
• Even more methods are now const.

Changed

• The Color and DynColor traits are now explicitly marked sealed (i.e. downstream crates cannot implement them).

  These traits were already effectively sealed due to a number of hidden methods that were not part of the API, but they are now explicitly so. In that sense this is not a breaking change, so it's being released under a new minor version rather than a major version.

4.1.1 - 2025-02-22

Added

• The vast majority of owo-colors is now usable in const contexts.

Fixed

• Documentation for Stream is now rendered properly. Thanks purplesyringa for the contribution!
• Replace brittle const-promotion-based unsafe code with safe code. Thanks Manish for the contribution!

Other

• owo-colors now lives under its own organization, https://github.com/owo-colors.

For information about earlier versions, see the commit history.

Commits

• 529ab4a [owo-colors] version 4.2.1
• 2ac1993 don't use a bool for is_fg, update changelog
• e4f7918 fix nightly clippy
• a891f3e fix combo color bug (#144)
• 6d12fd4 [owo-colors] version 4.2.0
• 376c775 prepare release
• 730073c add StylePrefixFormatter and StyleSuffixFormatter
• fb62f7a make even more methods const
• dbc2166 add into_styled to erase type parameters
• 1ae3d92 explicitly mark Color and DynColor sealed
• Additional commits viewable in compare view

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[dependabot]

Superseded by #42.