build(deps): bump FodyPackaging from 5.2.0 to 6.0.0 (#2143)

Bumps [FodyPackaging](https://github.com/Fody/Fody) from 5.2.0 to 6.0.0.
- [Release notes](https://github.com/Fody/Fody/releases)
- [Commits](https://github.com/Fody/Fody/commits)

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

Author: dependabot-preview[bot]

src/ReactiveUI.Fody.Helpers/ReactiveUI.Fody.Helpers.csproj

@@ -22,7 +22,7 @@
 
   <ItemGroup>
     <PackageReference Include="Fody" Version="6.0.0" PrivateAssets="None" />
-    <PackageReference Include="FodyPackaging" Version="5.2.0" PrivateAssets="All" />
+    <PackageReference Include="FodyPackaging" Version="6.0.0" PrivateAssets="All" />
     <PackageReference Include="System.Reactive" Version="4.1.6" />
   </ItemGroup>