Fix caching test

This PR fixes the caching tests in SpotCacheTest. The default caching mechanism in the WiScout project is the dummy cache, which implements the caching interface but doesn't actually cache. This overrides the CACHES setting for this test only to ensure that a real caching implementation (in this case, Local Memory) is used.

Please review: @NUWAN.KUMARASIRI @TREFILEK @bjsousa

spotseeker_server/test/spot_caching.py

@@ -7,7 +7,7 @@ from spotseeker_server.models import Spot
 class SpotCacheTest(TestCase):
 
     def test_spot_caching(self):
-        import pudb; pu.db
+
         spot = Spot.objects.create(name='foo')
         spot_id = spot.pk