Add mitigation with task and mapping import

Signed-off-by: gearnode <bryan@frimin.fr>

pkg/coredata/migrations/20250401T175400Z.sql

@@ -0,0 +1,3 @@
+ALTER TABLE controls
+  DROP CONSTRAINT IF EXISTS controls_framework_ref_unique,
+  ADD CONSTRAINT controls_framework_ref_unique UNIQUE (framework_id, reference_id);