Add Windows self-host agent for running PyMAPDL tests in Windows

[germa89]

We need to test PyMAPDL in a Windows environment.

However, we cannot install MAPDL in GitHub Windows runner, and neither we can't run a docker image inside a windows runner.

To solve that, we are going to use a self-hosted agent whose OS is Windows.

Steps

• Create self-hosted agent.
• Install MAPDL versions. From v22.0 to v22.2. Updates will need to be manually installed.
• Link LS
• Run tests.