The process '/usr/bin/bash' failed with exit code 2

/home/runner/work/ruby/ruby/./.github/actions/compilers/gcc-13/action.yml (Line: 22, Col: 7): Unexpected value 'flags to append to configure'

System.ArgumentException: Unexpected type 'StringToken' encountered while reading 'input metadata'. The type 'MappingToken' was expected. at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateTokenExtensions.AssertMapping(TemplateToken value, String objectDescription) at GitHub.Runner.Worker.ActionManifestManager.ConvertInputs(TemplateToken inputsToken, ActionDefinitionData actionDefinition) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)