chore(deps): update dependency microsoft.visualstudio.threading to v18 (#395)

Author: renovate[bot]

BilibiliLiveRecordDownLoader.Shared/BilibiliLiveRecordDownLoader.Shared.csproj

@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Dns.Net" Version="0.3.0" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading" Version="17.14.15" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading" Version="18.7.23" />
     <PackageReference Include="System.Reactive" Version="6.1.0" />
   </ItemGroup>