Bump OmniSharp.Extensions.LanguageClient from 0.19.5 to 0.19.6

Bumps [OmniSharp.Extensions.LanguageClient](https://github.com/OmniSharp/csharp-language-server-protocol) from 0.19.5 to 0.19.6.
- [Release notes](https://github.com/OmniSharp/csharp-language-server-protocol/releases)
- [Changelog](https://github.com/OmniSharp/csharp-language-server-protocol/blob/master/GitReleaseManager.yaml)
- [Commits](OmniSharp/csharp-language-server-protocol@v0.19.5...v0.19.6)

---
updated-dependencies:
- dependency-name: OmniSharp.Extensions.LanguageClient
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

test/PowerShellEditorServices.Test.E2E/PowerShellEditorServices.Test.E2E.csproj

@@ -10,7 +10,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="OmniSharp.Extensions.LanguageClient" Version="0.19.5" />
+    <PackageReference Include="OmniSharp.Extensions.LanguageClient" Version="0.19.6" />
     <PackageReference Include="OmniSharp.Extensions.DebugAdapter.Client" Version="0.19.5" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />