build(deps): bump subosito/flutter-action from 2.12.0 to 2.15.0 (#458)

Bumps [subosito/flutter-action](https://github.com/subosito/flutter-action) from 2.12.0 to 2.15.0. - [Release notes](https://github.com/subosito/flutter-action/releases) - [Commits](subosito/flutter-action@2783a3f...3d80492) --- updated-dependencies: - dependency-name: subosito/flutter-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/lint.yml

@@ -424,7 +424,7 @@ jobs:
  os:ubuntu-latest;pub-cache-hosted
  os:ubuntu-latest
  - name: Setup Flutter SDK
- uses: subosito/flutter-action@2783a3f08e1baf891508463f8c6653c258246225
+ uses: subosito/flutter-action@3d804929922b667a63a229bc59037807f969e885
  with:
  channel: master
  - id: checkout
@@ -458,7 +458,7 @@ jobs:
  os:ubuntu-latest;pub-cache-hosted
  os:ubuntu-latest
  - name: Setup Flutter SDK
- uses: subosito/flutter-action@2783a3f08e1baf891508463f8c6653c258246225
+ uses: subosito/flutter-action@3d804929922b667a63a229bc59037807f969e885
  with:
  channel: stable
  - id: checkout