add ConfigureTimeZone for all Unix based platforms

[rhatdan]

[NO NEW TESTS NEEDED]

[openshift-ci]

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[vrothberg]

LGTM but I find such PRs hard to review. There is no test, no information on why this is needed, and no linked vendor PR (e.g., to Podman) to know where it may be used.

[Luap99]

Assuming this is related to containers/podman#21332?
In this case this is straight up breaking freebsd timezone support as the old code was used for freebsd as well and now you turn it into a NOP.

So remove the linux only tag and have to existing code work for freebsd as well.

[rhatdan]

I tried to do a test, but the function in timezone is difficult to test outside of container.
Moved this to be supported on non-windows platforms.

[rhatdan]

@Luap99 PTAL

[Luap99]

LGTM