chore: update test dependencies

Author: renovate[bot]

package.json

@@ -19,7 +19,7 @@
     "@bpmn-io/feel-editor": "^1.4.0",
     "babel-loader": "^10.0.0",
     "babel-plugin-istanbul": "^7.0.0",
-    "chai": "^4.3.10",
+    "chai": "^6.0.0",
     "cross-env": "^10.0.0",
     "css-loader": "^7.0.0",
     "dmn-js": "^17.0.0",
@@ -34,7 +34,7 @@
     "karma-mocha": "^2.0.1",
     "karma-sinon-chai": "^2.0.2",
     "karma-webpack": "^5.0.0",
-    "mocha": "^10.2.0",
+    "mocha": "^11.0.0",
     "mocha-test-container-support": "^0.2.0",
     "npm-run-all2": "^8.0.0",
     "puppeteer": "^24.0.0",