Update fuzztest (trusted)

Rolling third_party/fuzztest/src: https://chromium.googlesource.com/external/github.com/google/fuzztest/+log/716629c..646127b

Avoid using IO module in the fuzztest_macros. (Hadi Ravanbakhsh)
https://chromium.googlesource.com/external/github.com/google/fuzztest/+/646127b

No public description (Sara Qu)
https://chromium.googlesource.com/external/github.com/google/fuzztest/+/7bf5c92

Roll created at https://cr-buildbucket.appspot.com/build/8720358797405070497

Cq-Include-Trybots: luci.v8.try:v8_linux64_asan_centipede_compile_dbg
Change-Id: I59e50b7a79fb5fa1f09b81081ec467c0bcaa35c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/6357380
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#99271}
diff --git a/DEPS b/DEPS
index 7021123..050f4fb 100644
--- a/DEPS
+++ b/DEPS
@@ -277,7 +277,7 @@
   'third_party/fuzztest':
     Var('chromium_url') + '/chromium/src/third_party/fuzztest.git' + '@' + 'df29ed1355d06c486e17fc421767ff01af050ca4',
   'third_party/fuzztest/src':
-    Var('chromium_url') + '/external/github.com/google/fuzztest.git' + '@' + '716629ca2e9312cfc41c444412ac5927a0e6a8d9',
+    Var('chromium_url') + '/external/github.com/google/fuzztest.git' + '@' + '646127b72bfb4f7efab7bca3aa8e34479d21ba24',
   'third_party/googletest/src':
     Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '4902ea2d7c6faed89b6facee00baa34bb108fc0d',
   'third_party/highway/src':