Bump Shouldly from 4.1.0 to 4.2.1

Bumps [Shouldly](https://github.com/shouldly/shouldly) from 4.1.0 to 4.2.1.
- [Release notes](https://github.com/shouldly/shouldly/releases)
- [Changelog](https://github.com/shouldly/shouldly/blob/master/BREAKING%20CHANGES.txt)
- [Commits](shouldly/shouldly@4.1.0...4.2.1)

---
updated-dependencies:
- dependency-name: Shouldly
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

samples/UnoSampleAppTests/UnoSampleAppTests.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="Selenium.WebDriver.ChromeDriver" Version="111.0.5563.6400" />
     <PackageReference Include="Selenium.WebDriver.MSEdgeDriver" Version="104.0.1293.70" />
-    <PackageReference Include="Shouldly" Version="4.1.0" />
+    <PackageReference Include="Shouldly" Version="4.2.1" />
   </ItemGroup>
 
   <ItemGroup>