chore: update test dependencies

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
     "babel-loader": "^10.0.0",
     "babel-plugin-istanbul": "^7.0.0",
     "camunda-dmn-moddle": "^1.3.0",
-    "chai": "^4.5.0",
+    "chai": "^6.0.0",
     "cross-env": "^10.0.0",
     "diagram-js": "^15.2.2",
     "dmn-js": "^17.0.3",
@@ -78,14 +78,14 @@
     "karma-mocha": "^2.0.1",
     "karma-sinon-chai": "^2.0.2",
     "karma-webpack": "^5.0.1",
-    "mocha": "^10.8.2",
+    "mocha": "^11.0.0",
     "mocha-test-container-support": "^0.2.0",
     "npm-run-all2": "^8.0.0",
     "puppeteer": "^24.0.0",
     "rollup": "^4.24.4",
     "rollup-plugin-copy": "^3.4.0",
-    "sinon": "^17.0.1",
-    "sinon-chai": "^3.7.0",
+    "sinon": "^21.0.0",
+    "sinon-chai": "^4.0.0",
     "webpack": "^5.96.1",
     "zeebe-dmn-moddle": "^1.0.0"
   },