Reduce OutputEventRenderer.onOutput() locking by refine lock granularity

[TheDadda]

Expected Behavior

Reduce OutputEventRenderer.onOutput() locking by refine lock granularity

Current Behavior

Multithreading creates many lock races when finally calling OutputEventRenderer.onOutput() while logging, waiting about 500,000 times

Context

We support parallel config on our gradle version to optimizing the configuration phase time, and i found that threads were waiting for OutputEventReanderer.lock.

I try to reduce locking by refine lock granularity：

• Remove OutputEventRenderer.lock invoked by onOutput()
• Add synchronization logics to OutputEventTransformer class.

Lock waiting counts reduced from 50,0000 to 3k, and it can save about 4s - 6s.

Below are some screenshots during debugging:

[eskatos]

Thank you for your interest in Gradle!

Thank you for the PR. The changes make sense and look good. We triggered CI validation and will follow up.