Use macos-13 to avoid errors setting up Python

[dfalbel]

Intent

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Addresses #2874

Approach

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macOS-latest now runs on arm64 but that image does not install Python 3.9 : actions/runner-images#9770

We set our runner to the macOS-13 image, that should run on x64 which has older python versions installed.

Also moved to macOS-12 for the TypesScript tests as this is the version it last passed

QA Notes

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[petetronic]

The build is currently broken without this, so I think it is fine to pin these versions of the OS until we track down the issue.