Release Version 1.12.0

[GeorgeGayno-NOAA]

The latest update to chgres_cube is a 'big' change. Therefore, it makes sense to create a release from 57bd832. A new release is also needed by the AQM and RRFS teams for upcoming implementations.

• Update the VERSION file.
• Use the tag name ufs_utils_1_12_0.
• After updating the VERSION file, rebuild the Doxygen documentation and update the gh-pages branch.
• Build the 'readthedocs' for the tag.
• Update the bullet list of items in the release notes, with links to the issues closed.
• After doing the release:
  • Create draft release notes (via cut and paste) for the next release.
  • Update the spack repo (work with @AlexanderRichert-NOAA).

[GeorgeGayno-NOAA]

FYI @BenjaminBlake-NOAA and @JianpingHuang-NOAA