Merge pull request #224 from chingu-x/test/unit-test-sprints

feat(sprints): created unit tests for the sprints' service and controller methods

Author: cherylli

CHANGELOG.md

@@ -31,6 +31,7 @@
 - Added routes for teams to create own tech stack categories([#208](https://github.com/chingu-x/chingu-dashboard-be/pull/208))
 - Added unit tests for Features controller and services ([#220](https://github.com/chingu-x/chingu-dashboard-be/pull/220))
 - Added GET endpoint for solo project ([#223](https://github.com/chingu-x/chingu-dashboard-be/pull/223))
+- Added units test for sprints ([#224](https://github.com/chingu-x/chingu-dashboard-be/pull/224))
 
 ### Changed
 - Updated cors origin list ([#218](https://github.com/chingu-x/chingu-dashboard-be/pull/218))