plural message fix

Author: zachbryant

src/report.ts

@@ -31,6 +31,7 @@ export function reportParentNode(
     loc,
     messageId,
     data: {
+      plural: unsortedCount > 1 ? 's' : '',
       unsortedCount,
       notice: getDeprecationMessage(context.id.split('/').at(-1)!),
     },

src/types/error.ts

@@ -1,6 +1,6 @@
 export enum ErrorMessage {
-  InterfaceParentInvalidOrder = `Found {{ unsortedCount }} keys out of order.`,
-  EnumParentInvalidOrder = `Found {{ unsortedCount }} members out of order.{{ notice }}`,
+  InterfaceParentInvalidOrder = `Found {{ unsortedCount }} key{{plural}} out of order.`,
+  EnumParentInvalidOrder = `Found {{ unsortedCount }} member{{plural}} out of order.{{ notice }}`,
   InterfaceInvalidOrder = `Expected interface keys to be in {{ order }}ending {{ options }}order. '{{ nodeName }}' should be {{ messageShouldBeWhere }}. Run autofix to sort entire body.`,
   EnumInvalidOrder = `Expected enum members to be in {{ order }}ending {{ options }}order. '{{ nodeName }}' should be {{ messageShouldBeWhere }}. Run autofix to sort entire body.{{ notice }}`,
 }