chromiumos: no need for quotes in label branch

See: go/cros-merge-controls

Bug: 382559767
Change-Id: I8f9e1b9f78947bf5173ffbe11532373f659555b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/+/6088294
Reviewed-by: Gavin Mak <[email protected]>
1 file changed