Bump Microsoft.NET.Test.Sdk from 18.5.1 to 18.6.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -14,7 +14,7 @@ SPDX-License-Identifier: MIT
         <PackageVersion Include="FSharp.Core" Version="10.1.300" />
         <PackageVersion Include="Meziantou.Analyzer" Version="3.0.94" />
         <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="10.0.5" />
-        <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
+        <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
         <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
         <PackageVersion Include="tdlib.native" Version="1.8.63" />
         <PackageVersion Include="xunit" Version="2.9.3" />