Run at least some tests under OSX and Windows operating systems

[michaelosthege]

Description

The current tests run only on ubuntu-latest and we're cutting releases without ever testing on other operating systems.

Also the tests running in the conda-build in pytensor-suite-feedstock only cover importing the package.

We noticed this because the sunode-feedstock build is currently failing for OSX with C compilation errors.

To become more robust across the three main operating systems, the PyTensor test suite should run a subset of tests on OSX or Windows.