Bump Xamarin.AndroidX.MediaRouter from 1.3.1 to 1.3.1.1 (#10926)

* Bump Xamarin.AndroidX.MediaRouter from 1.3.1 to 1.3.1.1

Bumps [Xamarin.AndroidX.MediaRouter](https://github.com/xamarin/AndroidX) from 1.3.1 to 1.3.1.1.
- [Release notes](https://github.com/xamarin/AndroidX/releases)
- [Commits](https://github.com/xamarin/AndroidX/commits)

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

Signed-off-by: dependabot[bot] <support@github.com>

* Auto-format source code

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Co-authored-by: GitHub Actions Autoformatter <autoformat@example.com>

eng/AndroidX.targets

@@ -34,7 +34,7 @@
     />
     <PackageReference
         Update="Xamarin.AndroidX.MediaRouter"
-        Version="1.3.1"
+        Version="1.3.1.1"
     />
     <PackageReference
         Update="Xamarin.AndroidX.Palette"