Switch V8 reference to git hash

Bug: 1341211
Change-Id: I0ae3dea1da2cc713d8d8a5b4eb5386a1b903b8e4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3779658
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/branch-heads/5195@{#10}
Cr-Branched-From: 7aa3f07-refs/heads/main@{#1027018}

DEPS

@@ -301,7 +301,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.
-  'v8_revision': 'refs/heads/10.5-lkgr',
+  'v8_revision': 'c5d3c31dae56d8dc226a9cf52eda7f918303885a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.