AUR correction

[williamjameshandley]

Description

Fix to typo in CI build system when upgrading for the Arch User Repository (AUR)

Checklist:

• [X] I have performed a self-review of my own code
• [X] My code is PEP8 compliant (flake8 lsbi tests)
• [X] My code contains compliant docstrings (pydocstyle --convention=numpy lsbi)
• [X] New and existing unit tests pass locally with my changes (python -m pytest)
• [X] I have added tests that prove my fix is effective or that my feature works
• [X] I have appropriately incremented the semantic version number in both README.rst and lsbi/_version.py

[codecov[bot]]

Codecov Report

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

Comparison is base (c165340) 100.00% compared to head (87b8318) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #9 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 4 4 Lines 151 151 ========================================= Hits 151 151 ``` | [Files](https://app.codecov.io/gh/handley-lab/lsbi/pull/9?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=handley-lab) | Coverage Δ | | |---|---|---| | [lsbi/\_version.py](https://app.codecov.io/gh/handley-lab/lsbi/pull/9?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=handley-lab#diff-bHNiaS9fdmVyc2lvbi5weQ==) | `100.00% <100.00%> (ø)` | |

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