Fix cannot delete measure with linked risk

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/migrations/20250417T100200Z.sql

@@ -0,0 +1,7 @@
+ALTER TABLE risks_mesures DROP CONSTRAINT IF EXISTS risks_mesures_mesure_id_fkey;
+
+ALTER TABLE risks_mesures
+    ADD CONSTRAINT risks_mesures_mesure_id_fkey
+    FOREIGN KEY (mesure_id)
+    REFERENCES mesures(id)
+    ON DELETE CASCADE;