Add missing not nullable column

Author: louptheron

backend/src/main/resources/db/migration/internal/V0.290__Update_last_positions_table.sql

@@ -8,5 +8,7 @@ ALTER TABLE public.last_positions
     ALTER COLUMN impact_risk_factor SET NOT NULL;
 ALTER TABLE public.last_positions
     ALTER COLUMN probability_risk_factor SET NOT NULL;
+ALTER TABLE public.last_positions
+    ALTER COLUMN detectability_risk_factor SET NOT NULL;
 ALTER TABLE public.last_positions
     ALTER COLUMN risk_factor SET NOT NULL;