Bump Fantomas.Core from 6.3.3 to 6.3.4 (#222)

Bumps [Fantomas.Core](https://github.com/fsprojects/fantomas) from 6.3.3 to 6.3.4.
- [Release notes](https://github.com/fsprojects/fantomas/releases)
- [Changelog](https://github.com/fsprojects/fantomas/blob/main/CHANGELOG.md)
- [Commits](fsprojects/fantomas@v6.3.3...v6.3.4)

---
updated-dependencies:
- dependency-name: Fantomas.Core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Exercism.TestRunner.FSharp/Exercism.TestRunner.FSharp.fsproj

@@ -20,7 +20,7 @@
 
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="Fantomas.Core" Version="6.3.3" />
+    <PackageReference Include="Fantomas.Core" Version="6.3.4" />
     <PackageReference Include="Fantomas.FCS" Version="6.3.4" />
     <PackageReference Include="Humanizer.Core" Version="2.14.1" />
     <PackageReference Update="FSharp.Core" Version="8.0.200" />