iiasa\actions\720e801f7386ffa30b4a1bed2711b60b85c8d6cd\setup-gams\action.yml (Line: 18, 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 iiasa\actions\720e801f7386ffa30b4a1bed2711b60b85c8d6cd\setup-gams\action.yml.') 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)