Fix import.

Author: hsubox76

common/api-review/analytics-exp.api.md

@@ -37,7 +37,7 @@ export type CustomEventName<T> = T extends EventNameString ? never : T;
 // @public
 export interface CustomParams {
     // (undocumented)
-    [key: string]: any;
+    [key: string]: unknown;
 }
 
 // @public

packages-exp/analytics-compat/src/index.ts

@@ -15,8 +15,7 @@
  * limitations under the License.
  */
 
-import { firebase } from '@firebase/app-compat';
-import { _FirebaseNamespace } from '@firebase/app-types/private';
+import { firebase, _FirebaseNamespace } from '@firebase/app-compat';
 import { name, version } from '../package.json';
 import { AnalyticsService } from './service';
 import {