Re-enable compatibility problems check during plugin verification

[helin24]

See background context here: #8590

Also noteworthy is that the verification problem is only for Android Studio platform version 2025.2 on Linux, so running ./gradlew verifyPlugin on mac won't show the issue. I'm able to reproduce on my remote linux machine though.

I think the potential improvements are:

1. Figure out why the dependency isn't being seen for this version of the platform. The dependency is a jar file directly included in the Dart plugin, so it doesn't depend on maven or a cloud-managed download. Potentially gradle just isn't seeing it correctly from the Flutter plugin
2. Ignore this one specific issue. See Is ignoredProblemsFile broken? JetBrains/intellij-platform-gradle-plugin#2046. So far I just can't get it to work, but it seems like it would make it so that we don't have to disable the compatibility problem check.