chore: fix types in tests

Author: lmiller1990

tests/config.spec.ts

@@ -5,12 +5,12 @@ import Hello from './components/Hello.vue'
 describe('config', () => {
   beforeEach(() => {
     config.global = {
-      components: undefined,
-      directives: undefined,
-      mixins: undefined,
-      plugins: undefined,
-      mocks: undefined,
-      provide: undefined
+      components: {},
+      directives: {},
+      mixins: [],
+      plugins: [],
+      mocks: {},
+      provide: {}
     }
 
     jest.clearAllMocks()