fix typo

Author: ThoSap

operator/src/main/resources/application.yml

@@ -89,7 +89,7 @@ quarkus:
         value-as-list: []
         paths:
           - (kind == Deployment).spec.template.spec.imagePullSecrets
-        description: Kubernetes image pull secret to use if the OCI image is hosted on a private registry
+        description: Kubernetes image pull secrets to use if the OCI image is hosted on a private registry
       resource-requests-cpu:
         property: resources.requests.cpu
         value: ${quarkus.kubernetes.resources.requests.cpu}