Error: The template is not valid. .github/workflows/build.yml (Line: 629, Col: 24): Error reading JToken from JsonReader. Path '', line 0, position 0.##[debug]GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. .github/workflows/build.yml (Line: 629, Col: 24): Error reading JToken from JsonReader. Path '', line 0, position 0.##[debug]   at GitHub.DistributedTask.ObjectTemplating.TemplateValidationErrors.Check()##[debug]   at GitHub.DistributedTask.Pipelines.ObjectTemplating.PipelineTemplateEvaluator.EvaluateStepInputs(TemplateToken token, DictionaryContextData contextData, IList`1 expressionFunctions)##[debug]   at GitHub.Runner.Worker.ActionRunner.RunAsync()##[debug]   at GitHub.Runner.Worker.StepsRunner.RunStepAsync(IStep step, CancellationToken jobCancellationToken)##[debug]Finishing: Check whether the needed jobs succeeded or failed