build(deps): bump DiffEngine from 6.1.1 to 6.1.2 (#124)

Bumps [DiffEngine](https://github.com/VerifyTests/DiffEngine) from 6.1.1 to 6.1.2.
- [Release notes](https://github.com/VerifyTests/DiffEngine/releases)
- [Commits](https://github.com/VerifyTests/DiffEngine/commits)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

src/ReactiveUI.Validation.Tests/ReactiveUI.Validation.Tests.csproj

@@ -24,7 +24,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="DiffEngine" Version="6.1.1" />    
+    <PackageReference Include="DiffEngine" Version="6.1.2" />    
   </ItemGroup>
 
   <ItemGroup>