build(deps): bump Microsoft.AspNetCore.Components from 3.1.7 to 3.1.8 (#2525)

Bumps [Microsoft.AspNetCore.Components](https://github.com/aspnet/AspNetCore) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/aspnet/AspNetCore/releases)
- [Commits](dotnet/aspnetcore@v3.1.7...v3.1.8)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

Diff for: src/ReactiveUI.Blazor/ReactiveUI.Blazor.csproj

@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Reactive.Wasm" Version="1.*" />
-    <PackageReference Include="Microsoft.AspNetCore.Components" Version="3.1.7" />
+    <PackageReference Include="Microsoft.AspNetCore.Components" Version="3.1.8" />
   </ItemGroup>
 
   <ItemGroup>