Bump FsUnit and NUnit (#37)

* Bump FsUnit and NUnit

Bumps [FsUnit](https://github.com/fsprojects/FsUnit) and [NUnit](https://github.com/nunit/nunit). These dependencies needed to be updated together.

Updates `FsUnit` from 7.0.0 to 7.0.1
- [Release notes](https://github.com/fsprojects/FsUnit/releases)
- [Changelog](https://github.com/fsprojects/FsUnit/blob/master/RELEASE_NOTES.md)
- [Commits](https://github.com/fsprojects/FsUnit/compare/7.0.0...7.0.1)

Updates `NUnit` from 4.3.1 to 4.0.1
- [Release notes](https://github.com/nunit/nunit/releases)
- [Changelog](https://github.com/nunit/nunit/blob/main/CHANGES.md)
- [Commits](https://github.com/nunit/nunit/compare/4.3.1...v4.0.1)

---
updated-dependencies:
- dependency-name: FsUnit
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: NUnit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Deps

* Fix

* Fix

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Smaug123 <3138005+Smaug123@users.noreply.github.com>

flake.lock

@@ -5,11 +5,11 @@
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@@ -20,11 +20,11 @@
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-        "rev": "ef7226d68ba45b2de3e428e5d4bb4532caffec7b",
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       "original": {