Bump YamlDotNet from 13.7.1 to 15.1.2

Bumps [YamlDotNet](https://github.com/aaubry/YamlDotNet) from 13.7.1 to 15.1.2.
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Commits](aaubry/YamlDotNet@v13.7.1...v15.1.2)

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

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

src/yunit/yunit.csproj

@@ -30,7 +30,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="17.8.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="YamlDotNet" Version="13.7.1" />
+    <PackageReference Include="YamlDotNet" Version="15.1.2" />
   </ItemGroup>
 
   <ItemGroup>