Bump args from 2.3.1 to 2.4.2

[dependabot]

Bumps args from 2.3.1 to 2.4.2.

Release notes

Sourced from args's releases.

package:args v2.4.2

• Change the validation of mandatory options; they now perform validation when the value is retrieved (from the ArgResults object), instead of when the args are parsed.
• Require Dart 2.19.

v2.4.0

• Command suggestions will now also suggest based on aliases of a command.
• Introduce getter Command.suggestionAliases for names that cannot be used as aliases, but will trigger suggestions.

v2.3.2

• Require Dart 2.18

Changelog

Sourced from args's changelog.

2.4.2

• Change the validation of mandatory options; they now perform validation when the value is retrieved (from the ArgResults object), instead of when the args are parsed.
• Require Dart 2.19.

2.4.1

• Add a CONTRIBUTING.md file; move the publishing automation docs from the readme into the contributing doc.
• Added package topics to the pubspec file.

2.4.0

• Command suggestions will now also suggest based on aliases of a command.
• Introduce getter Command.suggestionAliases for names that cannot be used as aliases, but will trigger suggestions.

2.3.2

• Require Dart 2.18

Commits

• a9543c0 switch to using package:dart_flutter_team_lints (#247)
• 36407ea adjust the validation of mandatory options (#246)
• f0f6cd2 blast_repo fixes (#243)
• 1864048 added package topics to the pubspec file (#242)
• db229fb Bump actions/checkout from 3.5.0 to 3.5.2 (#241)
• 5ac2ba1 Bump actions/checkout from 3.3.0 to 3.5.0 (#238)
• f77b1dc Bump dart-lang/setup-dart from 1.4.0 to 1.5.0 (#239)
• 7a5e3b0 update readme; add contributing doc (#237)
• 9305d5a Update README.md (#236)
• b08471e Suggest command based on aliases (#235)
• Additional commits viewable in compare view

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