build(deps): bump Xamarin.AndroidX.RecyclerView in /samples (#284)

Bumps [Xamarin.AndroidX.RecyclerView](https://github.com/xamarin/AndroidX) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/xamarin/AndroidX/releases)
- [Commits](https://github.com/xamarin/AndroidX/commits)

---
updated-dependencies:
- dependency-name: Xamarin.AndroidX.RecyclerView
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

samples/LoginApp.Android/LoginApp.Android.csproj

@@ -80,7 +80,7 @@
          See: https://github.com/reactiveui/ReactiveUI.Validation/pull/216#issuecomment-783218308 -->
     <PackageReference Include="Xamarin.AndroidX.Preference" Version="1.1.1.8" />
     <PackageReference Include="Xamarin.AndroidX.Fragment" Version="1.3.4" />
-    <PackageReference Include="Xamarin.AndroidX.RecyclerView" Version="1.2.0" />
+    <PackageReference Include="Xamarin.AndroidX.RecyclerView" Version="1.2.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\LoginApp\LoginApp.csproj">