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#### Describe the bug

I tried to use the function added in #4248 with TypeScript, but got the following error.

```
Property 'clear' does not exist on type 'AxiosInterceptorManager<AxiosRequestConfig<any>>
```

#### To Reproduce

Execution is possible, but type checking fails.

```ts
import axios from "axios";

axios.interceptors.request.clear()
```

#### Expected behavior

Successful type check

#### Environment
 - Axios 1.0.0
 - TypeScript 4.8.4

#### Additional context/Screenshots

index.d.ts
NCELED";
  static readonly ECONNABORTED = "ECONNABORTED";
  static readonly ETIMEDOUT = "ETIMEDOUT";
}
export class CanceledError<T> extends AxiosError<T> {
}
export type AxiosPromise<T = any> = Promise<AxiosResponse<T>>;
export interface CancelStatic {
  new (message?: string): Cancel;
}
export interface Cancel {
  message: string | undefined;
}
export interface Canceler {
  (message?: string, config?: AxiosRequestConfig, request?: any): void;
}
export interface CancelTokenStatic {
  new (executor: (cancel: Canceler) => void): CancelToken;
  source(): CancelTokenSource;
}
export interface CancelToken {
  promise: Promise<Cancel>;
  reason?: Cancel;
  throwIfRequested(): void;
}
export interface CancelTokenSource {
  token: CancelToken;
  cancel: Canceler;
}
export interface AxiosInterceptorOptions {
  synchronous?: boolean;
  runWhen?: (config: AxiosRequestConfig) => boolean;
}
export interface AxiosInterceptorManager<V> {
  use(onFulfilled?: (value: V) => V | Promise<V>, onRejected?: (error: any) => any, options?: AxiosInterceptorOptions): number;
  eject(id: number): void;
}
export class Axios {
  constructor(config?: AxiosRequestConfig);
  defaults: AxiosDefaults;
  interceptors: {
    request: AxiosInterceptorManager<AxiosRequestConfig>;
    response: AxiosInterceptorManager<AxiosResponse>;
  };
  getUri(config?: AxiosRequestConfig): string;
  request<T = any, R = AxiosResponse<T>, D = any>(config: AxiosRequestConfig<D>): Promise<R>;
  get<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
  delete<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
  head<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
  options<T = any, R = AxiosResponse<T>, D = any>(url: string, config?: AxiosRequestConfig<D>): Promise<R>;
  post<T = any, R = AxiosResponse<T>, D = any>(url: string, data?: D, config?: AxiosRequestConfig<D>): Promise<R>