- Roll forward to Update google_benchmark
- Add export header that is usually generated by the build system of
  google benchmark. We can ignore the export macro as we always just use
  the library in a source set.

Bug: v8:12666
Change-Id: Ifec570745c0258aa541b7aea41ba557a7e0fe563
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3512575Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79429}