updates rubocop to resolve security vulnerability
updates rubocop to resolve security vulnerability

adamstrickland/tmuxinator,J3RN/tmuxinator,ethagnawl/tmuxinator,tmuxinator/tmuxinator,ethagnawl/tmuxinator,tmuxinator/tmuxinator,tmuxinator/tmuxinator,adamstrickland/tmuxinator,J3RN/tmuxinator,ethagnawl/tmuxinator,J3RN/tmuxinator,adamstrickland/tmuxinator