doc: update Linux perf test status in our CI

We have tests for Linux perf under `test/v8-updates/test-linux-perf.js`,
and those tests are run as part of the `node-test-commit-v8-linux` job.

PR-URL: #22588
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

doc/guides/diagnostic-tooling-support-tiers.md

@@ -137,7 +137,7 @@ The tools are currently assigned to Tiers as follows:
  | Tracing   | ETW                       | No                            | Partial                 |     3       |
  | Tracing   | Systemtap                 | No                            | Partial                 |     ?       |
  | Profiling | V8 CPU profiler  (--prof) | No                            | Yes                     |     1       |
- | Profiling | Linux perf                | No                            | Partial                 |     ?       |
+ | Profiling | Linux perf                | Yes                           | Partial                 |     ?       |
  | Profiling | DTrace                    | No                            | Partial                 |     3       |
  | Profiling | Windows Xperf             | No                            | ?                       |     ?       |
  | Profiling | 0x                        | No                            | No                      |     4       |