The script used to identify and update the change is added into the GitHub
workflows script directory. A workflow action can be created to trigger the
script to update the headers on the first of every new year. Possibly a task for
a consequent PR.
Adjust the documentation to be more clear how to activate the new lsp feature.
Simplify layer setup code.
Provide missing company-lsp integration in feature list.
Remove obsolete tests for a loaded lsp layer as the docker layer loads it
itself already.
