Update google_benchmark

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/d4bc509..ef7f75f

simplified code (#1439) (maochongxin)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/ef7f75f

use target_compile_definitions (#1440) (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/e27c930

Stop generating the export header and just check it in (#1435) (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/7b3ac07

Also fix the SOVERSION for benchmark_main (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/d845b7b

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

Change-Id: Ifbb9be7752856e3f0ab042194108a96a5b6cc083
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3782483Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81884}

DEPS

@@ -235,7 +235,7 @@ deps = {
     'dep_type': 'cipd',
   },
   'third_party/google_benchmark/src': {
-    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + 'd4bc509bcd54266e80bef26d5829ea43ead2908e',
+    'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + 'ef7f75fb182fc23d03b4a3ecd09cc325ac125dfd',
   },
   'third_party/googletest/src':
     Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + 'af29db7ec28d6df1c7f0f745186884091e602e07',