Fix OWNERS for presubmit

TBR=yangguo@chromium.org
NOTRY=true
NOPRESUBMIT=true

Change-Id: I20d3a60e406c47725b9c02da69912fcf84cb7166
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803638
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63772}

OWNERS

@@ -16,7 +16,7 @@ per-file BUILD.gn=file:COMMON_OWNERS
 per-file DEPS=file:INFRA_OWNERS
 # For Test262 rolls.
 per-file DEPS=mathias@chromium.org
-per-file PRESUBMIT=file:INFRA_OWNERS
+per-file PRESUBMIT.py=file:INFRA_OWNERS
 per-file codereview.settings=file:INFRA_OWNERS
 
 per-file AUTHORS=file:COMMON_OWNERS