[test] Update comment on skipped test

That test is already slow on non-tsan bots, and we do not need TSan
coverage here. Thus keep it skipped, but update the comment.

R=mslekova@chromium.org

Fixed: v8:11610
No-Try: true
Change-Id: I1dedcc7b4d5736aca7c4cc0dc0526e4df7502440
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2797290Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73766}

test/inspector/inspector.status

@@ -146,7 +146,7 @@
   # that we do not run OOM. Thus skip it on TSan.
   'debugger/wasm-step-a-lot': [SKIP],
 
-  # BUG(v8:11610)
+  # Another slow test that does not need to run on TSan.
   'debugger/wasm-inspect-many-registers': [SKIP],
 }],  # 'tsan == True'