v20.20.2
src: allow non-Node.js TracingControllers
src: add missing inialization in agent.h
src: apply clang-tidy rule modernize-make-unique
src: apply clang-tidy rule modernize-use-override
src: de-lint header usage
src: trace threadpool event
src: add public APIs to manage v8::TracingController
src: add include guard for trace_event_common.h
src: refactor to use locale functions
tools: add clang-tidy rule in src