Fix #972, CON51-CPP falsely reporting that std::lock_guard requires catch#973

MichaelRFairhurst merged 1 commit intomaingithub/codeql-coding-standards:mainfrom

michaelrfairhurst/fix-972-lock-guard-doesnt-require-catch-in-CON51-cppgithub/codeql-coding-standards:michaelrfairhurst/fix-972-lock-guard-doesnt-require-catch-in-CON51-cppCopy head branch name to clipboard