Bump github/codeql-action from 2.1.18 to 2.1.19
Bump github/codeql-action from 2.1.18 to 2.1.19

Closes https://github.com/dart-lang/sdk/pull/49779

GitOrigin-RevId: 670498b2f06e2fed99b262b18b379b39bd589e1a
Change-Id: Id4930c801efe010386fad66629207a9fb35f7d8b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/255987
Reviewed-by: Alexander Thomas <29642742b6693024c89de8232f2e2542cf7eedf7@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk