chore: fix wrong import path in microlearning service

packages/graphql/src/services/microLearning.ts

@@ -12,10 +12,10 @@ import {
 } from '@klicker-uzh/util'
 import dayjs from 'dayjs'
 import { GraphQLError } from 'graphql'
-import { sendTeamsNotifications } from 'src/lib/util.js'
 import { StackInput } from 'src/types/app.js'
 import { v4 as uuidv4 } from 'uuid'
 import { Context, ContextWithUser } from '../lib/context.js'
+import { sendTeamsNotifications } from '../lib/util.js'
 import { computeStackEvaluation } from './practiceQuizzes.js'
 
 interface GetMicroLearningArgs {