The latest npm version is now 10, which needs a newer node version than
our project supports, forcing us to stay on 9

Fixes formating error for coverage report due to new gitlab version

Force clean up of the virtual env before update and use python3.10
everywhere

Ok as long as we do not do anything with the builds

Some breaking changes in webpack
https://github.com/webpack/webpack/issues/14532

For now we only validate that the packages build without errors

Adds testing and linting of the frontend

Omits the test folder since checking coverage of the test functions
themselves makes little sense.

Introduce a new lint task invoked through "make lint".  It currently
only lints the Poetry configuration.

The lint task is ran as part of the continuous integration pipeline.

Fixes: GREG-16

Fixes: GREG-15