chore: update to execa@9.6.1

Author: nikku

package-lock.json

@@ -76,7 +76,7 @@
     "dmn-js-properties-panel": "^3.10.0",
     "eslint": "^9.39.2",
     "eslint-plugin-bpmn-io": "^2.2.0",
-    "execa": "^8.0.0",
+    "execa": "^9.6.1",
     "inferno": "~5.6.2",
     "karma": "^6.4.4",
     "karma-chai": "^0.1.0",