Fix asset owner deletion

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/coredata/migrations/20251003T102644Z.sql

@@ -0,0 +1,6 @@
+ALTER TABLE assets DROP CONSTRAINT assets_owner_id_fkey;
+ALTER TABLE assets ADD CONSTRAINT assets_owner_id_fkey
+    FOREIGN KEY (owner_id)
+    REFERENCES peoples(id)
+    ON UPDATE CASCADE
+    ON DELETE RESTRICT;