Use proper type in pick

Author: jerelmiller

packages/apollo-angular/http/src/http-batch-link.ts

@@ -32,7 +32,7 @@ export const defaults = {
  */
 export function pick<K extends keyof Omit<typeof defaults, 'batchInterval' | 'batchMax'>>(
   context: Context,
-  options: HttpLink.Options,
+  options: HttpBatchLink.Options,
   key: K,
 ): ReturnType<typeof prioritize<Context[K] | HttpLink.Options[K] | (typeof defaults)[K]>> {
   return prioritize(context[key], options[key], defaults[key]);