/home/runner/work/excss/excss/./.github/actions/setup-rust/action.yaml (Line: 6, Col: 3): Unexpected value 'steps'

System.ArgumentNullException: Value cannot be null. (Parameter 'You are using a composite action but there are no steps provided in /home/runner/work/excss/excss/./.github/actions/setup-rust/action.yaml.') 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)