fix(tests): make mocks for rest octokit async

tests/mocks/api/github/rest/activity/listEventsForAuthenticatedUser.mjs

@@ -1,5 +1,5 @@
 /**Mocked data */
-export default function({ faker }, target, that, [{ username: login, page, per_page }]) {
+export default async function({ faker }, target, that, [{ username: login, page, per_page }]) {
   console.debug("metrics/compute/mocks > mocking rest api result > rest.activity.listEventsForAuthenticatedUser")
   return ({
     status: 200,

tests/mocks/api/github/rest/activity/listRepoEvents.mjs

@@ -2,7 +2,7 @@
 import listEventsForAuthenticatedUser from "./listEventsForAuthenticatedUser.mjs"
 
 /**Mocked data */
-export default function({ faker }, target, that, [{ username: login, page, per_page }]) {
+export default async function({ faker }, target, that, [{ username: login, page, per_page }]) {
   console.debug("metrics/compute/mocks > mocking rest api result > rest.activity.listRepoEvents")
   return listEventsForAuthenticatedUser(...arguments)
 }