fix CI

[a14n]

No description provided.

[a14n]

The issues were caused by a fix in sort_constructors_first and an other fix on unnecessary_this.

[a14n]

The CI is still failing but not because of Dart code. Now it's because of some APK build failures because of java dependency issue:

• cloud_firestore/example (apk)
• cloud_functions/example (apk)
• firebase_database/example (apk)
• firebase_storage/example (apk)

FAILURE: Build failed with an exception.
* What went wrong:
Failed to capture snapshot of input files for task ':app:preReleaseBuild' property 'compileManifests' during up-to-date check.
> The library com.google.android.gms:play-services-basement is being requested by various other libraries at [[15.0.1,15.0.1]], but resolves to 16.0.1. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 6s
 6.7s
Gradle task assembleRelease failed with exit code 1

[a14n]

I think we can land this PR (sorry but I don't have time to dig into those new errors)

[mit-mit]

cc @cbracken @kroikie

[cbracken]

Thanks Alexandre! LGTM.