Build(deps): Bump CommunityToolkit.Mvvm from 8.0.0 to 8.1.0 (#11035)

Bumps [CommunityToolkit.Mvvm](https://github.com/CommunityToolkit/dotnet) from 8.0.0 to 8.1.0.
- [Release notes](https://github.com/CommunityToolkit/dotnet/releases)
- [Commits](CommunityToolkit/dotnet@v8.0.0...v8.1.0)

---
updated-dependencies:
- dependency-name: CommunityToolkit.Mvvm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/Files.App/Files.App.csproj

@@ -66,7 +66,7 @@
     </ItemGroup>
     <ItemGroup>
         <PackageReference Include="ByteSize" Version="2.1.1" />
-        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.0.0" />
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.1.0" />
         <PackageReference Include="FluentFTP" Version="43.0.1" />
         <PackageReference Include="ini-parser-netstandard" Version="2.5.2" />
         <PackageReference Include="Microsoft.AppCenter.Analytics" Version="5.0.1" />

src/Files.Backend/Files.Backend.csproj

@@ -11,7 +11,7 @@
 
     <ItemGroup>
         <PackageReference Include="ByteSize" Version="2.1.1" />
-        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.0.0" />
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.1.0" />
     </ItemGroup>
 
     <ItemGroup>