fix: use pull_request_target for PR title linting#689

dlevy-msft-sql wants to merge 3 commits intomicrosoft:mainmicrosoft/go-sqlcmd:mainfrom

dlevy-msft-sql:fix/pr-title-lint-permissionsdlevy-msft-sql/go-sqlcmd:fix/pr-title-lint-permissionsCopy head branch name to clipboard