chore(deps): update CS3D to 4.15.9 to fix OHIF issues 5656 and 5639. (#5714)

extensions/cornerstone-dynamic-volume/package.json

@@ -42,8 +42,8 @@
   },
   "dependencies": {
     "@babel/runtime": "7.28.2",
-    "@cornerstonejs/core": "4.15.7",
-    "@cornerstonejs/tools": "4.15.7",
+    "@cornerstonejs/core": "4.15.9",
+    "@cornerstonejs/tools": "4.15.9",
     "classnames": "2.5.1"
   }
 }