GitLab

fix(package.json): use lowercase projects folders names in scripts (as repositories names in Gitlab)

remove execution to download openapi-generator-cli-5.2.1.jar and add generate-models to the prepare step.

This reverts commit 1023f310.

add execution to download openapi-generator-cli-5.2.1.jar, this is only necessary for jenkins CI

reactivate npm-install + npm-generate-model to avoid errors while releasing