Bump the tests group with 1 update

Bumps Microsoft.NET.Test.Sdk from 18.3.0 to 18.5.1

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: tests
...

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

Author: dependabot[bot]

src/Tests/Tests.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="Microsoft.Extensions.Http" Version="10.0.5" />
     <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="10.0.5" />
     <PackageReference Include="Microsoft.Extensions.Options.DataAnnotations" Version="10.0.5" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="System.Formats.Asn1" Version="10.0.7" />
     <PackageReference Include="System.Linq.Async" Version="7.0.1" Condition="'$(TargetFramework)' == 'net8.0'" />