Integrate gitlab-ci/do-not-hardcode-projects-in-changelog-generator and 1 more

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@8edbf2a6

Changelog generator: fix typo

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@e6ae06dd

Changelog generator: pass projects as arguments

Instead of hard-coding the project list in the changelog generator
script, make them passable via arguments. This way we can have different
changelogs in different envrionments. Hence we're adding the changelog
job in the ci-test environment as well.