Bump YamlDotNet from 15.1.2 to 15.1.6

Bumps [YamlDotNet](https://github.com/aaubry/YamlDotNet) from 15.1.2 to 15.1.6.
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Commits](aaubry/YamlDotNet@v15.1.2...v15.1.6)

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

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

src/ApiGenerator/ApiGenerator.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="Glob" Version="1.1.9" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="NSwag.Core" Version="14.0.7" />
-    <PackageReference Include="YamlDotNet" Version="15.1.2" />
+    <PackageReference Include="YamlDotNet" Version="15.1.6" />
     <PackageReference Include="SemanticVersioning" Version="2.0.2" />
     <PackageReference Include="ShellProgressBar" Version="5.2.0" />
     <PackageReference Include="Spectre.Console" Version="0.49.1" />