/home/runner/work/activate-action/activate-action/./action.yml: (Line: 19, Col: 3, Idx: 522) - (Line: 19, Col: 4, Idx: 523): While parsing a block mapping, did not find expected key.

System.ArgumentException: Unexpected type '' encountered while reading 'action manifest root'. 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)