Create a Test Project that Validates the Functionality of the Reusable GitHub Actions

[PSchmiedmayer]

Problem

• The current repo setup relies on external tests in other repos to validate the functionality of the build scripts

Solution

• The repo should contain a test project that contains multiple targets to validate the functionality of the different GitHub Actions

Additional context

This issue is a great way to get started with contributing to the GitHub Actions and getting familiar with the issue as it mainly consists of testing and validating the existing functionality.

Code of Conduct

• I agree to follow this project's Code of Conduct and Contributing Guidelines

[Supereg]

Wouldn’t it make sense to include the project inside this repository to allow for automated PR testing such that everything is self-contained?
Similar to how we do it with the swiftlint action?

[PSchmiedmayer]

@Supereg Yes, that was the intention of the issue, including it in this project is the way to go 👍

[PSchmiedmayer]

#41 provides an other motivation for this, we should see that we can also catch regressions in these workflows.