Bump OmniSharp.Extensions.LanguageClient from 0.18.3 to 0.19.0

Bumps [OmniSharp.Extensions.LanguageClient](https://github.com/OmniSharp/csharp-language-server-protocol) from 0.18.3 to 0.19.0.
- [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@v0.18.3...v0.19.0)

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

Author: dependabot-preview[bot]

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

@@ -10,7 +10,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging" Version="5.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="OmniSharp.Extensions.LanguageClient" Version="0.18.3" />
+    <PackageReference Include="OmniSharp.Extensions.LanguageClient" Version="0.19.0" />
     <PackageReference Include="OmniSharp.Extensions.DebugAdapter.Client" Version="0.18.3" />
     <PackageReference Include="xunit" Version="2.4.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />