/home/runner/work/ssh-action-deploy/ssh-action-deploy/./action.yml: Expected document start parse event

System.ArgumentException: Unexpected type '' encountered while reading 'action manifest ***'. The type 'MappingToken' was expected. at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateTokenExtensions.AssertMapping(TemplateToken value, String objectDescription) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)