RC v2.1.1 updates

[aburrell]

Description

Bring release changes back into develop.

Type of change

Please delete options that are not relevant.

• Release candidate

How Has This Been Tested?

Unit tests

Test Configuration

• Operating system: GitHub Actions
• Python version number: 3.9-3.14
• Compiler with version number: gfortran 15.X
• Relevant local setup details: N/A

Checklist

• Make sure you are merging into the develop (not main) branch
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• Add a note to Changelog.rst, summarising the changes
• Add yourself to AUTHORS.rst and CITATION.cff

[coveralls]

Coverage Report for CI Build 27704110924

Coverage remained the same at 99.701%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	1002
Covered Lines:	999
Line Coverage:	99.7%
Coverage Strength:	16.95 hits per line

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💛 - Coveralls