chore(deps): update dependency reactiveui.blazor to 20.2.45

Author: renovate[bot]

src/ReactiveMvvm.Blazor/ReactiveMvvm.Blazor.csproj

@@ -4,7 +4,7 @@
         <RazorLangVersion>3.0</RazorLangVersion>
     </PropertyGroup>
     <ItemGroup>
-        <PackageReference Include="ReactiveUI.Blazor" Version="20.1.1" />
+        <PackageReference Include="ReactiveUI.Blazor" Version="20.2.45" />
         <PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="8.0.7" />
     </ItemGroup>
     <ItemGroup>