tracing: Update to use new Platform tracing apis

V8 modified the platform API to accept a tracing controller at platform
creation time that is required to be present for the lifetime of the
platform if tracing will every be enabled. This will simplify the
implementation of a v8::Platform subclass for node.

PR-URL: https://github.com/nodejs/node/pull/14001


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>