VueTestUtilsConfigOptions provide type is not allowing symbols as keys

[DesselBane]

Subject of the issue

When defining global provides using a Symbol / vues InjectionKey<T> type there is a type error.

Steps to reproduce

const testKey: InjectionKey<string> = Symbol("testKey");

config.global.provide[testKey] = "testValue";
// Type 'InjectionKey<string>' cannot be used as an index type.ts(2538)

Expected behaviour

Symbols should be supported in the type, as they work at runtime.

Actual behaviour

TS Error

Possible Solution

vue-test-utils/packages/test-utils/types/index.d.ts

Line 183 in 9627a80

provide?: Record<string, any>,

I think changing the type here would suffice

// Currently
export interface VueTestUtilsConfigOptions {
  stubs: Record<string, Component | boolean | string>
  mocks: Record<string, any>
  methods: Record<string, Function>
  provide?: Record<string, any>,
  showDeprecationWarnings?: boolean
  deprecationWarningHandler?: Function
}

// Fixed
export interface VueTestUtilsConfigOptions {
  stubs: Record<string, Component | boolean | string>
  mocks: Record<string, any>
  methods: Record<string, Function>
  provide?: Record<string | symbol, any>,
  showDeprecationWarnings?: boolean
  deprecationWarningHandler?: Function
}