Fixes Gradle build error with Grace Views tasks

[rainboyan]

$ ./gradlew bootJar

> Task :resolveMainClassName FAILED

FAILURE: Build failed with an exception.

* What went wrong:
A problem was found with the configuration of task ':resolveMainClassName' (type 'ResolveMainClassName').
  - Gradle detected a problem with the following location: '/Users/grace/myapp/build/gson-classes/main'.

    Reason: Task ':resolveMainClassName' uses this output of task ':compileGsonViews' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed.

    Possible solutions:
      1. Declare task ':compileGsonViews' as an input of ':resolveMainClassName'.
      2. Declare an explicit dependency on ':compileGsonViews' from ':resolveMainClassName' using Task#dependsOn.
      3. Declare an explicit dependency on ':compileGsonViews' from ':resolveMainClassName' using Task#mustRunAfter.

    For more information, please refer to https://docs.gradle.org/8.10.2/userguide/validation_problems.html#implicit_dependency in the Gradle documentation.