Release v0.1.2

What's Changed

• Add integration tests by @NNTin in #10
• First green tests by @NNTin in #14
• Restoring test commits by @NNTin in #15
• Fixing remaining tests by @NNTin in #16
• Create our first Powershell Modules: MessageUtil, ... by @NNTin in #17
• Created PowerShell modules: RepositoryUtils, TestArtifacts and ValidationSuite by @NNTin in #18
• Create PowerShell modules: GitSnapshot and GitManager by @NNTin in #19
• Enable pipeline checks by @NNTin in #20
• Versioning update of powershell manifests by @NNTin in #21
• Use technical user by @NNTin in #22

Full Changelog: v0.1.1...v0.1.2