Bump ReactiveUI.Fody from 18.4.22 to 18.4.26 (#57)

Bumps [ReactiveUI.Fody](https://github.com/reactiveui/reactiveui) from 18.4.22 to 18.4.26.
- [Release notes](https://github.com/reactiveui/reactiveui/releases)
- [Commits](https://github.com/reactiveui/reactiveui/compare/18.4.22...18.4.26)

---
updated-dependencies:
- dependency-name: ReactiveUI.Fody
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Live.Avalonia.Sample.Library/Live.Avalonia.Sample.Library.csproj

@@ -5,6 +5,6 @@
     </PropertyGroup>
     <ItemGroup>
         <PackageReference Include="ReactiveUI.Validation" Version="3.1.7" />
-        <PackageReference Include="ReactiveUI.Fody" Version="18.4.22" />
+        <PackageReference Include="ReactiveUI.Fody" Version="18.4.26" />
     </ItemGroup>
 </Project>