release/1.5.1: add nc-diag@1.1.2 (from jcsda_emc_spack_stack)

[climbfuji]

Description

This PR cherry-picks the addition of gsi-ncdiag@1.1.2 from jscsda_emc_spack_stack for release/1.5.1.

Issue(s) addressed

Working towards https://github.com/JCSDA/spack-stack/issues/822

Dependencies

n/a

Impact

n/a

Checklist

• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have run the unit tests before creating the PR

[climbfuji]

@DavidHuber-NOAA FYI