doc: move perf tools and APIs to Tier 3

V8 CodeEventHandler, V8 CpuProfiler, Linux perf and the
`--interpreted-frames-native-stack`, `--prof` and `--prof-process` flags
satisfies our Diagnostics Support requirements for Tier 3. V8
CodeEventHandler and CpuProfiler are tested as part of our V8 CI, and
`Linux perf` / `--interpreted-frames-native-stack` are tested by
`test/v8-updates/test-linux-perf.js`. `--prof` and `--prof-process` are
tested in Node.js test suite.

PR-URL: https://github.com/nodejs/node/pull/22915


Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>