fix(action): return nil if no errors occurred
fix(action): return nil if no errors occurred

Signed-off-by: Matthew Fisher <d7b4933872ff6976310344046643071159afa913@microsoft.com>

adamreese/deployment-manager,adamreese/helm,adamreese/deployment-manager,michelleN/deployment-manager,adamreese/deployment-manager,michelleN/deployment-manager,helm/helm,bacongobbler/helm,adamreese/helm,michelleN/deployment-manager,adamreese/deployment-manager,bacongobbler/helm,michelleN/deployment-manager,helm/helm,adamreese/deployment-manager