Add leeway for validating taken at in future (#2502)

add leeway to taken at in future

Co-authored-by: Vignesh Hari <14056798+vigneshhari@users.noreply.github.com>

care/facility/api/serializers/daily_round.py

@@ -326,7 +326,7 @@ def validate(self, attrs):
         return validated
 
     def validate_taken_at(self, value):
-        if value and value > timezone.now():
+        if value and value > timezone.now() + timedelta(minutes=2):
             msg = "Cannot create an update in the future"
             raise serializers.ValidationError(msg)
         return value