3.4.4: Maintenance release

[guyer]

This maintenance release adds Logging and resolves compatibility issues with recent builds of PETSc and NumPy.

What's Changed

• Discourage StackOverflow by @guyer in Discourage StackOverflow #876
• Add Logging by @guyer in Add Logging #875
• Add tests for the Nix build by @wd15 in Add tests for the Nix build #791
• Manually clean up PETSc objects by @guyer in Manually clean up PETSc objects #899
• Get CI working again by @guyer in Get CI working again #925
• Fix numpy 1.25 issues by @guyer in Fix numpy 1.25 issues #930

Curated Changelog: https://github.com/usnistgov/fipy/blob/3.4.4/CHANGELOG.rst

Full Changelog: 3.4.3...3.4.4

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This discussion was created from the release 3.4.4: Maintenance release.