chore(deps): update dependency system.reactive to 6.1.0

Author: renovate[bot]

src/DynamicData/DynamicData.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Reactive" Version="6.0.1" />
+    <PackageReference Include="System.Reactive" Version="6.1.0" />
   </ItemGroup>
 
   <ItemGroup>