Only run testCoreformGeom unit tests if PETSc is enabled and new enough

[jwpeterson]

Refs #3803

[roystgnr]

Looks like we're missing the header that includes that macro? (although we're getting it indirectly under most builds)

[roystgnr]

Thanks for catching this, and IMHO this is the right fix. This is new enough stuff that I don't care about supporting runtime incompatibilities with old PETSc.

[jwpeterson]

Any idea what's going on with the failing MOOSE tests?

   ERROR misc/signal_handler.test_signal_parallel_recover FAILED (unknown dependency) [min_cpus=3]
   ERROR misc/signal_handler.test_signal_recover_debug FAILED (unknown dependency) [METHOD!=DBG]
   ERROR misc/signal_handler.test_signal_recover FAILED (unknown dependency)

[roystgnr]

I can't find any obvious recent changes. I'll ask around. Definitely nothing related to this PR though.

[roystgnr]

Wait, I think I know what MOOSE PR would have triggered this.

[roystgnr]

idaholab/moose#26588 went in 5 days ago; I'm betting that's the one.

[jwpeterson]

The remaining failures all seem to be unrelated to this change so I will merge now.