style(yamllint): add missing new line

Author: volker-raschek

unittests/helm/deployment/basic.yaml

@@ -110,4 +110,4 @@ tests:
           value: "/usr/sbinx"
       - equal:
           path: spec.template.spec.initContainers[*].volumeMounts[?(@.name=="config")].mountPath
-          value: "/usr/sbinx"
+          value: "/usr/sbinx"