GitHub Actions Workflow Improvements

[Isopod00]

Suggested GitHub Actions Workflow Improvements:

• Add C++ linting to the super-linter action we already use for python (maybe other languages too? like YAML, XML, and bash?)
• Test colcon build to make sure key packages build (probably not necessary though as it would take a long time)
• Automatically run unit tests to ensure the functionality of our key functions
  • This is for both the tests included in every ROS package and for new ones we write ourselves
  • Is "colcon test" the right way to do this? Look into how the included ROS package tests should be run
  • If we can set it up to auto run them, then create a new task for people to write some unit tests

[jmblixt3]

1. You can c++ linting just match the ros standard
2. For bash linting use shellcheck
3. in order to run unit tests you need to colcon build first
4. colcon test is the right way to do this, ros repos normally use jenkins so some work will need to be done to get this to work but overall should be relatively easy

[jmblixt3]

Also instead of just failing as an action make it fix the issues with a new commit for lint errors