Update google_benchmark

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/37be1e8..7eb8c0f

Introduce warmup phase to BenchmarkRunner (#1130) (#1399) (Matthdonau)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/7eb8c0f

Add support to get clock for new architecture CSKY (#1400) (Zi Xuan Wu (Zeson))
https://chromium.googlesource.com/external/github.com/google/benchmark/+/6c46c9f

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

Change-Id: Id8121e8c4d87442bde184c7c940d8b102ebdf9c0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3665706
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#80734}

DEPS

@@ -235,7 +235,7 @@ deps = {
     'dep_type': 'cipd',
   },
   'third_party/google_benchmark/src': {
-    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + '37be1e8252527229cccad9f097afe68572f3c08a',
+    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + '7eb8c0fe45c2893f13863f2fa317c46db0336c4e',
   },
   'third_party/googletest/src':
     Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + 'af29db7ec28d6df1c7f0f745186884091e602e07',