fix(runtime-core): components options should accept components define…

[cexbrayat]

…d with defineComponent

Currently, when using TypeScript, a component defined with defineComponent can not be used in the components options:

const comp = defineComponent({})
defineComponent({
  components: { comp }
})

This example was throwing with:

The last overload gave the following error.
    Type { comp: new () => ComponentPublicInstance<unknown, unknown, unknown, {}, {}, VNodeProps>; } is not assignable to type Record<string, Component>.
      Property comp is incompatible with index signature.

This commit fixes the issue, and adds a simple repro in the dts tests.

[yyx990803]

Thanks!