chore: update packages and remove unused package.

Author: jlareo

src/SocketIOClient.Sample/SocketIOClient.Sample.csproj

@@ -6,10 +6,6 @@
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Websocket.Client" Version="4.3.15" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\SocketIOClient\SocketIOClient.csproj" />
   </ItemGroup>

src/SocketIOClient.Test/SocketIOClient.Test.csproj

@@ -8,8 +8,8 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
     <PackageReference Include="Moq" Version="4.16.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.2.4" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.4" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.5" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.5" />
   </ItemGroup>
 
   <ItemGroup>