Bump AutoFixture from 4.17.0 to 4.18.1

Bumps [AutoFixture](https://github.com/AutoFixture/AutoFixture) from 4.17.0 to 4.18.1.
- [Release notes](https://github.com/AutoFixture/AutoFixture/releases)
- [Commits](AutoFixture/AutoFixture@v4.17.0...v4.18.1)

---
updated-dependencies:
- dependency-name: AutoFixture
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Test/Test.csproj

@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="AutoFixture" Version="4.17.0" />
+    <PackageReference Include="AutoFixture" Version="4.18.1" />
     <PackageReference Include="AutoFixture.AutoMoq" Version="4.17.0" />
     <PackageReference Include="AutoFixture.Xunit2" Version="4.17.0" />
     <PackageReference Include="FluentAssertions" Version="6.5.1" />