Chromium build, v8_context_snapshot_generator execution fails: Perfetto error: "A track event used an unknown category."

When building Qt 6.9.1 from sources on Windows with VS 2022 (17.14.7) with QtWebengine, Debug Version
(This is my exact command line 

call configure.bat -debug-and-release -force-debug-info -nomake examples -nomake tests -openssl-linked  -- -DOPENSSL_ROOT_DIR=c:\Projects\openssl-3.2.2
cmake --build . --parallel 2

):

Somewhere, when building Chromium, the build fails with this error message:

[263/264] ACTION //tools/v8_context_snapshot:generate_v8_context_snapshot(/C:/Qt6/Src/qtwebengine/src/core/target_toolchain:x64)
FAILED: v8_context_snapshot.debug.bin
C:/Python312/python.exe ../../../3rdparty/chromium/build/gn_run_binary.py ./v8_context_snapshot_generator --output_file=v8_context_snapshot.debug.bin
[278.760] category_registry.h:292 PERFETTO_CHECK(false && "A track event used an unknown category. Please add it to " "PERFETTO_DEFINE_CATEGORIES().")
./v8_context_snapshot_generator failed with exit code 2147483651
ninja: build stopped: subcommand failed.

I already found out the name of the unknown category, it is: "test"
(Though I did not find out, where it was falsely used in a perfetto macro)

A possible bugfix is to add this category in these files:

Src\qtwebengine\src\3rdparty\chromium\base\trace_event\builtin_categories.h:

  X(TRACE_DISABLED_BY_DEFAULT("webgpu"))                                 \
  X(TRACE_DISABLED_BY_DEFAULT("webnn"))                                  \
  X(TRACE_DISABLED_BY_DEFAULT("webrtc"))                                 \
  X(TRACE_DISABLED_BY_DEFAULT("worker.scheduler"))                       \
  X(TRACE_DISABLED_BY_DEFAULT("xr.debug"))                               \
  X("test")               

Src\qtwebengine\src\3rdparty\chromium\v8\src\tracingtrace-categories.h:
(probably not needed here, but just to be sure)

PERFETTO_DEFINE_CATEGORIES_IN_NAMESPACE_WITH_ATTRS(
    v8,
    V8_EXPORT_PRIVATE,
    perfetto::Category("cppgc"),
    perfetto::Category("test"),
...

I know, this is 3rd party. Nevertheless it would be nice, to have sources that don't fail building.