chore: Bump the dependencies group with 1 update

Bumps Mecha.xUnit from 3.2.7 to 3.2.8

---
updated-dependencies:
- dependency-name: Mecha.xUnit
  dependency-version: 3.2.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

FileCurator.Tests/FileCurator.Tests.csproj

@@ -109,7 +109,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Mecha.xUnit" Version="3.2.7" />
+    <PackageReference Include="Mecha.xUnit" Version="3.2.8" />
     <PackageReference Include="coverlet.collector" Version="6.0.4">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>