Release v2.6.0 on 2024-06-10

Non-zero-diff Changes:

• Bug fix of uninitialized tep and qp when wstar <= 0.001 by @atrayano in #931
• make_bcs fix for bad HWSDv1.21 data in Argentina "peatland" by @gmao-rreichle in #944 (zero-diff at runtime)

Zero-diff changes:

• Additional cleanup of Stieglitz snow code by @gmao-rreichle in #813
• CICE6 cmake and namelist updates for post release v6.5.0 merge by @zhaobin74 in #925

Full Changelog: v2.5.3...v2.6.0