It has been a while since we worked on this project, so by now our GitHub Actions job no longer runs successfully. This PR gets it back running again, but doesn't fix all potential issues that have shown up now, such as out-of-support & security vulnerability warnings for older target frameworks. Whether we want to drop support for .NET Core 2.1 and 3.1 can be decided separately.
It has been a while since we worked on this project, so by now our GitHub Actions job no longer runs successfully. This PR gets it back running again, but doesn't fix all potential issues that have shown up now, such as out-of-support & security vulnerability warnings for older target frameworks. Whether we want to drop support for .NET Core 2.1 and 3.1 can be decided separately.