feat: migrate to esm

packages/collection-utils/src/key-by.ts

@@ -19,7 +19,10 @@
  * each key is the last element responsible for generating the key. The
  * iteratee is invoked with one argument: (value).
  */
-export function keyBy<T>(collection: T[], key: (item: T) => string | number): Record<string, T> {
+export function keyBy<T>(
+  collection: T[],
+  key: (item: T) => string | number
+): Record<string, T> {
   return collection.reduce((accumulator, item) => {
     accumulator[key(item)] = item;
     return accumulator;