Verify that template generation works for every components

Actually, the CI only enforce commit message formatting and python black formatting of build.

It could be interesting to add 2 stages:

1. a build stage to test gen-socle and gen-addon for every addons, keeping the generated files
2. a test stage to run some helm commands to check that the generated values

In the future, the test stage could be replaced by an automatic deployment and some automated tests run against the temporary deployed infrastructure.