C/C++ sonarcfamily.jar no longer bundled

Hey!

This is just a heads up that the cfamily jar is no longer bundled by default in the .vsix for C/C++. Instead it's just an sonarcfamily.jar.asc file.

It's either downloaded to ~/.vscode/extensions/sonarsource.sonarlint_ondemand-analyzers/sonar-cfamily-plugin/<version> if using the vscode plugin install method or needs to be manually set up via https://docs.sonarsource.com/sonarqube-for-vs-code/getting-started/offline-installation#performing-the-offline-installation manual, since mason won't be able to automatically download it.