Update validate-pr-title.yml

Signed-off-by: John McCall <john@overturemaps.org>

Author: lowlydba

.github/workflows/validate-pr-title.yml

@@ -68,7 +68,6 @@ jobs:
           # Validate single-commit PRs too, since GitHub may suggest the commit
           # message instead of the PR title when squash-merging.
           validateSingleCommit: true
-          validateSingleCommitMatchesPrTitle: true
 
           # Allow [WIP] prefix for draft work on repos without draft PR support.
           wip: true