prefer-describe-function-title false positive on type imports

[leeyi45]

In Typescript it is possible to specify that something is only a "type" import - that is it gets elided at runtime, which means that the code below is an error:

import type { TestFunc } from '../types';

describe(TestFunc, () => {});

since TestFunc is just a type and can't be used as a value. But prefer-describe-function-title insists on converting the string TestFunc into an identifier:

import type { TestFunc } from '../types';

describe('TestFunc', () => {}); // is highlighted as an error