/home/runner/work/fast-apt-mirror.sh/fast-apt-mirror.sh/./action.yml: (Line: 20, Col: 194, Idx: 1525) - (Line: 23, Col: 28, Idx: 1560): While parsing a flow mapping, did not find expected ',' or '}'.

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)