Bump YamlDotNet in /src/GitHubActionsDotNet in the core group

Bumps the core group in /src/GitHubActionsDotNet with 1 update: [YamlDotNet](https://github.com/aaubry/YamlDotNet).


Updates `YamlDotNet` from 15.1.6 to 15.3.0
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Commits](aaubry/YamlDotNet@v15.1.6...v15.3.0)

---
updated-dependencies:
- dependency-name: YamlDotNet
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: core
...

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

src/GitHubActionsDotNet/GitHubActionsDotNet.csproj

@@ -13,7 +13,7 @@
 	<ItemGroup>
 		<PackageReference Include="System.IO" Version="4.3.0" />
 		<PackageReference Include="System.Text.Json" Version="8.0.3" />
-		<PackageReference Include="YamlDotNet" Version="15.1.6" />
+		<PackageReference Include="YamlDotNet" Version="15.3.0" />
 		<PackageReference Include="Microsoft.CSharp" Version="4.7.0" />	
 	</ItemGroup>