D:\a\rippled\rippled\./.github/actions/environment\action.yml (Line: 6, Col: 11): Unexpected symbol: '['. Located at position 10 within expression: contains(['Linux', 'Windows'], runner.os)

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. D:\a\rippled\rippled\./.github/actions/environment\action.yml (Line: 6, Col: 11): Unexpected symbol: '['. Located at position 10 within expression: contains(['Linux', 'Windows'], runner.os) at GitHub.DistributedTask.ObjectTemplating.TemplateValidationErrors.Check() 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)