update to fix readthedocs build

Description

Fixes # (issue)

Type of change

Bug fix (non-breaking change which fixes an issue)
New feature (non-breaking change which adds functionality)
Breaking change (fix or feature that would cause existing functionality to not work as expected)
This change requires a documentation update

How Has This Been Tested?

[ ] Local Pre-commit Checks
[ ] CI/CD Build

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
[ ] If applicable - I have commented my code, particularly in hard-to-understand areas
[ ] If applicable - I have made corresponding changes to the documentation
[ ] If applicable - I have added tests that prove my fix is effective or that my feature works
[ ] If applicable - New and existing unit tests pass locally with my changes
[ ] Any dependent changes have been merged and published in downstream modules

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (7896bf3) 98.49% compared to head (0730407) 98.49%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #596 +/- ## ======================================= Coverage 98.49% 98.49% ======================================= Files 76 76 Lines 2729 2729 Branches 415 415 ======================================= Hits 2688 2688 Misses 41 41 ``` | [Flag](https://app.codecov.io/gh/esgf2-us/metagrid/pull/596/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [backend](https://app.codecov.io/gh/esgf2-us/metagrid/pull/596/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | `100.00% <ø> (ø)` | | | [frontend](https://app.codecov.io/gh/esgf2-us/metagrid/pull/596/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | `97.75% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#carryforward-flags-in-the-pull-request-comment) to find out more.

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esgf2-us / metagrid