Reuse collection fixture (#80)

* Bump dependencies

Enable built-in .NET analyzers on .NET Framework. see
https://github.com/dotnet/roslyn-analyzers?tab=readme-ov-file#microsoftcodeanalysisnetanalyzers

* Bump build TargetFramework

* Reuse collection fixture

This commit updates the health check test to avoid creating
a separate test fixture, and reuses the collection fixture.
A separate test fixture creates a separate qdrant docker
test container, which is not needed for this test.

---------

Co-authored-by: Anush <[email protected]>

Author: russcam

tests/Qdrant.Client.Tests/HealthCheckTests.cs

@@ -4,7 +4,8 @@
 
 namespace Qdrant.Client
 {
-	public class HealthCheckTests : IClassFixture<QdrantFixture>
+	[Collection("Qdrant")]
+	public class HealthCheckTests
 	{
 		private readonly QdrantClient _client;