/home/runner/work/deeprank2/deeprank2/./.github/actions/install-python-and-package/action.yml (Line: 21, Col: 3): Unexpected value 'defaults'

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /home/runner/work/deeprank2/deeprank2/./.github/actions/install-python-and-package/action.yml (Line: 21, Col: 3): Unexpected value 'defaults' at GitHub.DistributedTask.ObjectTemplating.TemplateValidationErrors.Check() at GitHub.Runner.Worker.ActionManifestManager.ConvertRuns(IExecutionContext executionContext, TemplateContext templateContext, TemplateToken inputsToken, String fileRelativePath, MappingToken outputs) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)