Update to AGP 9

[yschimke]

First version with compat workarounds in place.

Will cause some issues running in Intellij, but support coming in Q1. And we are already on 8.13.1 which is not compatible.

[yschimke]

Could not determine the dependencies of task ':native-image-tests:lintReportJvm'.
> Could not create task ':native-image-tests:lintAnalyzeJvmMain'.
   > DefaultTaskContainer#NamedDomainObjectProvider.configure(Action) on task set cannot be executed in the current context.

[yschimke]

Could not determine the dependencies of task ':native-image-tests:nativeTestCompile'.
> Could not resolve all dependencies for configuration ':native-image-tests:nativeImageTestClasspath'.
gradle/actions: Writing build results to /home/runner/work/_temp/.gradle-actions/build-results/__run_2-1769338155250.json

[Incubating] Problems report is available at: file:///home/runner/work/okhttp/okhttp/build/reports/problems/problems-report.html
   > Could not create task ':native-image-tests:generateJvmMainLintModel'.
      > DefaultTaskContainer#NamedDomainObjectProvider.configure(Action) on task set cannot be executed in the current context.

[yschimke]

@swankjesse requesting post review.

We may need to revert if it causes problems, but our gradle build needs some love, and it seems wise to do it against the latest.

[yschimke]

I need to confirm this is just because AGP is now 17+, but the artifacts still work for older android clients...