Bump CommunityToolkit.Mvvm from 8.4.0 to 8.4.2

---
updated-dependencies:
- dependency-name: CommunityToolkit.Mvvm
  dependency-version: 8.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Bloxstrap/Bloxstrap.csproj

@@ -83,7 +83,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
     <PackageReference Include="DiscordRichPresence" Version="1.6.1.70" />
     <PackageReference Include="Markdig" Version="0.44.0" />
     <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.257">