Bump Shouldly from 4.0.3 to 4.1.0 in /src (#348)

Bumps [Shouldly](https://github.com/shouldly/shouldly) from 4.0.3 to 4.1.0.
- [Release notes](https://github.com/shouldly/shouldly/releases)
- [Changelog](https://github.com/shouldly/shouldly/blob/master/BREAKING%20CHANGES.txt)
- [Commits](shouldly/shouldly@v4.0.3...4.1.0)

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

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

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

Author: dependabot[bot]

src/Cake.AzureDevOps.Tests/Cake.AzureDevOps.Tests.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="Cake.Testing" Version="2.0.0" />
     <PackageReference Include="Microsoft.TeamFoundationServer.Client" Version="16.170.0" />
     <PackageReference Include="Moq" Version="4.18.2" />
-    <PackageReference Include="Shouldly" Version="4.0.3" />
+    <PackageReference Include="Shouldly" Version="4.1.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />