ci: bump dart-lang/setup-dart from 1.3 to 1.4

[dependabot]

Bumps dart-lang/setup-dart from 1.3 to 1.4.

Release notes

Sourced from dart-lang/setup-dart's releases.

v1.4

• Added reusable workflow for automated publishing to pub.dev
• Automatically setup OIDC tokens for authentication with pub.dev

See dart.dev/go/automated-publishing for details.

Changelog

Sourced from dart-lang/setup-dart's changelog.

v1.6.4

• Rebuild JS code.

v1.6.3

• Roll undici dependency to address CVE-2024-30260 and CVE-2024-30261.

v1.6.2

• Switch to running the workflow on node20`` from node16`. See also Transitioning from Node 16 to Node 20.

v1.6.1

• Updated the google storage url for main channel releases.

v1.6.0

• Enable provisioning of the latest Dart SDK patch release by specifying just the major and minor version (e.g. 3.2).

v1.5.1

• No longer test the setup-dart action on pre-2.12 SDKs.
• Upgrade JS interop code to use extension types (the new name for inline classes).
• The upcoming rename of the be channel to main is now supported with forward compatibility that switches when the rename happens.

v1.5.0

• Re-wrote the implementation of the action into Dart.
• Auto-detect the platform architecture (x64, ia32, arm, arm64).
• Improved the caching and download resilience of the sdk.
• Added a new action output: dart-version - the installed version of the sdk.

v1.4.0

• Automatically create OIDC token for pub.dev.
• Add a reusable workflow for publishing.

v1.3.0

• The install location of the Dart SDK is now available

... (truncated)

Commits

• a57a6c0 Reusable workflow for publishing. (#64)
• 7b1734b Automatically create OIDC token for pub.dev. (#60)
• 745c09d Update and cleanup README (#63)
• 196f545 Update README.md (#53)
• 5676714 Run tests on a schedule (#54)
• c89375b Bump actions/checkout from 2 to 3 (#51)
• 6dbcbd7 Create dependabot.yaml (#49)
• See full diff in compare view

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[nyoungstudios]

@dependabot rebase

[nyoungstudios]

@dependabot rebase

[dependabot]

Looks like dart-lang/setup-dart is up-to-date now, so this is no longer needed.