Update google_benchmark

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/ce92bbf..d6ba952

compare.py: compute and print 'OVERALL GEOMEAN' aggregate (#1289) (Roman Lebedev)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/d6ba952

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com,mlippautz@chromium.org

Change-Id: I3afb27fd3e86a25300a7129578967d695e15f679
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3300813
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Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#78080}

DEPS

@@ -223,7 +223,7 @@ deps = {
     'condition': 'checkout_fuchsia',
   },
   'third_party/google_benchmark/src': {
-    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + 'ce92bbfb903308bf31530cfb69a36bb06e16d368',
+    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + 'd6ba952fc15dbdc54fda46b99babdb9db5fbe58b',
   },
   'third_party/googletest/src':
     Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '3e0e32ba300ce8afe695ad3ba7e81b21b7cf237a',