Set properly task position for tasks updated from timesheets even if dependencies have priority

The task is marked as fixed if it has been updated from timesheets even in the
case that dependencies have priority and it should be moved to a different
position. The dependencies will appear as violated.

FEA: ItEr77S12AdaptPlanningAccordingTimesheets

libreplan-webapp/src/main/java/org/libreplan/web/planner/TaskElementAdapter.java

@@ -1203,7 +1203,8 @@ _(
             @Override
             public boolean isFixed() {
                 return taskElement.isLimitingAndHasDayAssignments()
-                        || taskElement.hasConsolidations();
+                        || taskElement.hasConsolidations()
+                        || taskElement.isUpdatedFromTimesheets();
             }
 
             @Override