chore: update dependency bpmn-js to v16

Author: renovate[bot]

package-lock.json

@@ -73,7 +73,7 @@
     "axe-core": "^4.8.2",
     "babel-loader": "^9.1.3",
     "babel-plugin-istanbul": "^6.1.1",
-    "bpmn-js": "^15.0.0",
+    "bpmn-js": "^16.0.0",
     "bpmn-js-create-append-anything": "^0.4.0",
     "bpmn-moddle": "^8.0.1",
     "camunda-bpmn-js-behaviors": "^1.2.1",