Bump FsCheck.Xunit from 2.16.4 to 2.16.5 in /src/ApiService

Bumps [FsCheck.Xunit](https://github.com/fsharp/FsCheck) from 2.16.4 to 2.16.5.
- [Release notes](https://github.com/fsharp/FsCheck/releases)
- [Changelog](https://github.com/fscheck/FsCheck/blob/master/FsCheck%20Release%20Notes.md)
- [Commits](fscheck/FsCheck@2.16.4...2.16.5)

---
updated-dependencies:
- dependency-name: FsCheck.Xunit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/ApiService/Tests/Tests.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="FsCheck" Version="2.16.4" />
-    <PackageReference Include="FsCheck.Xunit" Version="2.16.4" />
+    <PackageReference Include="FsCheck.Xunit" Version="2.16.5" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.2" />
     <PackageReference Include="Moq" Version="4.17.2" />
     <PackageReference Include="System.Security.Cryptography.Pkcs" Version="7.0.2" />