fix API reports

Author: Brian Chen

common/api-review/firestore-lite.api.md

@@ -33,7 +33,7 @@ export class Bytes {
 }
 
 // @public
-export type ChildUpdateFields<T, K extends string> = T extends Record<string, any> ? AddPrefixToKeys<K, UpdateData<T>> : never;
+export type ChildUpdateFields<T1, K extends string> = T1 extends Record<string, unknown> ? AddPrefixToKeys<K, UpdateData<T1>> : never;
 
 // @public
 export function collection(firestore: Firestore, path: string, ...pathSegments: string[]): CollectionReference<DocumentData>;

common/api-review/firestore.api.md

@@ -36,7 +36,7 @@ export class Bytes {
 export const CACHE_SIZE_UNLIMITED = -1;
 
 // @public
-export type ChildUpdateFields<T, K extends string> = T extends Record<string, any> ? AddPrefixToKeys<K, UpdateData<T>> : never;
+export type ChildUpdateFields<T1, K extends string> = T1 extends Record<string, unknown> ? AddPrefixToKeys<K, UpdateData<T1>> : never;
 
 // @public
 export function clearIndexedDbPersistence(firestore: Firestore): Promise<void>;