fix(import): small fix to timesheets.module

src/modules/timesheets/timesheets.module.ts

@@ -1,10 +1,14 @@
 import { Module } from '@nestjs/common';
 import { TimesheetsController } from './controllers/timesheets.controller';
 import { TimesheetsService } from './services/timesheets.service';
+import { OvertimeService } from 'src/business-logic/overtime.service';
 
 @Module({
   controllers: [TimesheetsController],
-  providers: [TimesheetsService],
+  providers: [
+    TimesheetsService,
+    OvertimeService,
+  ],
   exports: [TimesheetsService],
 })
 export class TimesheetsModule {}