Is your feature request related to a problem? Please describe.

Currently, Ruby JIT (such as YJIT) is not enabled by default in Fluentd. As Ruby's JIT compiler has significantly matured and proven to offer substantial performance improvements, it would be highly beneficial for the community to leverage these gains out-of-the-box.

Describe the solution you'd like

I would like to propose enabling Ruby JIT by default in a future version of Fluentd.

Describe alternatives you've considered

Currently, users can manually enable JIT via enable_jit setting. However, making it the default behavior would provide immediate throughput improvements for all users without requiring manual configuration.

Additional context

No response