Bump Fody from 3.3.5 to 4.0.2 (#1948)

Bumps [Fody](https://github.com/Fody/Fody) from 3.3.5 to 4.0.2.
- [Release notes](https://github.com/Fody/Fody/releases)
- [Commits](Fody/Fody@3.3.5...4.0.2)

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

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

@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Fody" Version="3.3.5" PrivateAssets="None" />
+    <PackageReference Include="Fody" Version="4.0.2" PrivateAssets="None" />
     <PackageReference Include="FodyPackaging" Version="3.3.5" PrivateAssets="All" />
     <PackageReference Include="System.Reactive" Version="4.0.0" />
   </ItemGroup>