(deps): Bump YamlDotNet from 15.1.4 to 15.1.6 in /src

Bumps [YamlDotNet](https://github.com/aaubry/YamlDotNet) from 15.1.4 to 15.1.6.
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Commits](aaubry/YamlDotNet@v15.1.4...v15.1.6)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -35,7 +35,7 @@
     <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageVersion Include="Shouldly" Version="4.2.1" />
     <PackageVersion Include="System.Text.Json" Version="8.0.3" />
-    <PackageVersion Include="YamlDotNet" Version="15.1.4" />
+    <PackageVersion Include="YamlDotNet" Version="15.1.6" />
     <PackageVersion Include="coverlet.msbuild" Version="6.0.2" />
   </ItemGroup>
 </Project>