chore(deps): update subosito/flutter-action action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
subosito/flutter-action	action	major	v1.5.3 -> v2.4.0

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Release Notes

subosito/flutter-action

### [`v2.4.0`](https://togithub.com/subosito/flutter-action/compare/v2.3.0...v2.4.0) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.3.0...v2.4.0) ### [`v2.3.0`](https://togithub.com/subosito/flutter-action/compare/v2.2.1...v2.3.0) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.2.1...v2.3.0) ### [`v2.2.1`](https://togithub.com/subosito/flutter-action/releases/tag/v2.2.1) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.2.0...v2.2.1) quiet unzip ### [`v2.2.0`](https://togithub.com/subosito/flutter-action/releases/tag/v2.2.0) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.1.0...v2.2.0) add cache-path option ### [`v2.1.0`](https://togithub.com/subosito/flutter-action/releases/tag/v2.1.0) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.0.4...v2.1.0) add cache option ### [`v2.0.4`](https://togithub.com/subosito/flutter-action/releases/tag/v2.0.4) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.0.3...v2.0.4) add actions/cache support ### [`v2.0.3`](https://togithub.com/subosito/flutter-action/releases/tag/v2.0.3) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.0.2...v2.0.3) fix PUB_CACHE env ### [`v2.0.2`](https://togithub.com/subosito/flutter-action/releases/tag/v2.0.2) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v2.0.1...v2.0.2) update v2 readme ### [`v2.0.1`](https://togithub.com/subosito/flutter-action/releases/tag/v2.0.1) [Compare Source](https://togithub.com/subosito/flutter-action/compare/v1.5.3...v2.0.1) written as shell script

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Configuration

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