Integrate gitlab-ci/add_git_credentials_script and 9 more

Commit: seco-ne/yocto/infrastructure/gitlab-ci@42bfe4f0

build:prepare: Add setup script for Git Credentials

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@24653ff8

build:machines: Add i.MX93 to the build job template

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@7aae72ea

Re-enable sourcery

With the free open source plan, sourcery works only when called from the repository's root directory. Re-enable it by calling it from there.

Also apply sourcery's suggestions to file generate_firmware_package.py, which did not exist before disabling sourcery.

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@51e0cf67

build:stages: Add Firmware Package JSON stage

The old Alphaplan stage is deprecated and was removed in a prior commit. Add new stage to generate the Firmware Package JSON files that do replace the old Alphaplan articles.

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@1830cb02

And another improvement for the build-up-to-date job

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@f7f33de5

Improve the output message in the build-up-to-date job a bit more

Use explicit line breaks to make the message look better.

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@68aaab94

Improve the output message in the build-up-to-date job

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@26b9eb1d

Rename "check" job to "build-up-to-date"

This is a more meaningful name and might give a hint what the job does.

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@07f0c898

Make build runner tag configurable

--

Commit: seco-ne/yocto/infrastructure/gitlab-ci@0d70d719

Disable sourcery check

Sourcery changed its license model to only be available for open source projects with the free plan. According to the documentation, sourcery should detect automatically whether it is running on an open source repo. This does not work in our case, though. Disable it until we find a way to correctly make it work.