Update dependencies.

- Update dev dependencies.
- Update test dependencies.

Author: davidlehn

package.json

@@ -43,23 +43,23 @@
   "devDependencies": {
     "@digitalbazaar/eslint-config": "^7.0.0",
     "c8": "^10.1.3",
-    "chai": "^4.5.0",
+    "chai": "^6.2.2",
     "cors": "^2.8.5",
-    "cross-env": "^7.0.3",
+    "cross-env": "^10.1.0",
     "detect-node": "^2.1.0",
     "eslint": "^9.39.2",
-    "express": "^4.21.2",
+    "express": "^5.2.1",
     "karma": "^6.4.4",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^3.2.0",
     "karma-mocha": "^2.0.1",
     "karma-mocha-reporter": "^2.2.5",
     "karma-sourcemap-loader": "^0.4.0",
     "karma-webpack": "^5.0.1",
-    "mocha": "^11.1.0",
-    "rimraf": "^6.0.1",
-    "rollup": "^4.37.0",
-    "webpack": "^5.98.0"
+    "mocha": "^11.7.5",
+    "rimraf": "^6.1.2",
+    "rollup": "^4.55.1",
+    "webpack": "^5.104.1"
   },
   "repository": {
     "type": "git",