Bump YamlDotNet from 13.7.1 to 15.1.1

Bumps [YamlDotNet](https://github.com/aaubry/YamlDotNet) from 13.7.1 to 15.1.1.
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Commits](aaubry/YamlDotNet@v13.7.1...v15.1.1)

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

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

src/LocalAppVeyor.Engine/LocalAppVeyor.Engine.csproj

@@ -24,7 +24,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.PowerShell.SDK" Version="7.4.0" />
     <PackageReference Include="System.IO.Abstractions" Version="20.0.4" />
-    <PackageReference Include="YamlDotNet" Version="13.7.1" />
+    <PackageReference Include="YamlDotNet" Version="15.1.1" />
     <PackageReference Include="Microsoft.Build" Version="17.8.3" />
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageReference Include="System.Diagnostics.Process" Version="4.3.0" />