Bump to v0.7.1

[tomvothecoder]

Description

• Update changelog and fix date in paper.md
• Constrain numpy<2.0 in conda env and build workflow (related to [Bug]: xESMF related issue "AttributeError: np.NaN was removed in the NumPy 2.0 release. Use np.nan instead." #668)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

If applicable:

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass with my changes (locally and CI/CD build)
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have noted that this is a breaking change for a major release (fix or feature that would cause existing functionality to not work as expected)

[tomvothecoder]

My self-review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (c653bf2) to head (cc495d4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #667   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines         1544      1544           
=========================================
  Hits          1544      1544           

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