build(deps): bump FodyHelpers from 6.5.0 to 6.5.1 in /src (#2725)

Bumps [FodyHelpers](https://github.com/Fody/Fody) from 6.5.0 to 6.5.1.
- [Release notes](https://github.com/Fody/Fody/releases)
- [Commits](Fody/Fody@6.5.0...6.5.1)

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

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

Author: dependabot[bot]

src/ReactiveUI.Fody/ReactiveUI.Fody.csproj

@@ -10,6 +10,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FodyHelpers" Version="6.5.0" />
+    <PackageReference Include="FodyHelpers" Version="6.5.1" />
   </ItemGroup>
 </Project>