test(lit-query): add the 'override' modifier to test classes that override a base class member (#11909)

Author: sukvvon

packages/lit-query/src/__tests__/createInfiniteQueryController.test.ts

@@ -804,7 +804,7 @@ describe('createInfiniteQueryController', () => {
       )
 
       readonly firstRead = this.infinite()
-      readonly id = 'alpha'
+      override readonly id = 'alpha'
     }
 
     customElements.define(generateElementName(), DeferredExplicitInfiniteHost)

packages/lit-query/src/__tests__/createMutationController.test.ts

@@ -932,7 +932,7 @@ describe('createMutationController', () => {
       )
 
       readonly firstRead = this.mutation()
-      readonly id = 'alpha'
+      override readonly id = 'alpha'
       readonly offset = 1
     }
 

packages/lit-query/src/__tests__/createQueryController.test.ts

@@ -1675,7 +1675,7 @@ describe('createQueryController', () => {
       )
 
       readonly firstRead = this.query()
-      readonly id = 'alpha'
+      override readonly id = 'alpha'
     }
 
     customElements.define(generateElementName(), DeferredExplicitQueryHost)