Update dependencies.

package.json

@@ -18,34 +18,34 @@
     "./lib/sha.js": "./lib/sha-browser.js"
   },
   "dependencies": {
-    "@digitalbazaar/ecdsa-multikey": "^1.6.0",
+    "@digitalbazaar/ecdsa-multikey": "^1.8.0",
     "canonicalize": "^2.0.0"
   },
   "devDependencies": {
-    "@digitalbazaar/data-integrity": "^2.3.0",
-    "@digitalbazaar/data-integrity-context": "^2.0.0",
+    "@digitalbazaar/data-integrity": "^2.5.0",
+    "@digitalbazaar/data-integrity-context": "^2.0.1",
     "@digitalbazaar/did-io": "^2.0.0",
     "@digitalbazaar/did-method-key": "^5.2.0",
     "@digitalbazaar/multikey-context": "^2.0.1",
     "@digitalbazaar/security-document-loader": "^3.0.0",
-    "c8": "^7.11.3",
-    "chai": "^4.3.6",
+    "c8": "^10.1.2",
+    "chai": "^4.5.0",
     "cross-env": "^7.0.3",
-    "eslint": "^8.53.0",
-    "eslint-config-digitalbazaar": "^5.0.1",
-    "eslint-plugin-jsdoc": "^50.2.2",
-    "eslint-plugin-unicorn": "^55.0.0",
-    "jsonld-signatures": "^11.2.1",
-    "karma": "^6.4.2",
+    "eslint": "^8.57.1",
+    "eslint-config-digitalbazaar": "^5.2.0",
+    "eslint-plugin-jsdoc": "^50.4.3",
+    "eslint-plugin-unicorn": "^56.0.0",
+    "jsonld-signatures": "^11.3.2",
+    "karma": "^6.4.4",
     "karma-chai": "^0.1.0",
-    "karma-chrome-launcher": "^3.1.1",
+    "karma-chrome-launcher": "^3.2.0",
     "karma-mocha": "^2.0.1",
     "karma-mocha-reporter": "^2.2.5",
-    "karma-sourcemap-loader": "^0.3.8",
-    "karma-webpack": "^5.0.0",
-    "mocha": "^10.0.0",
+    "karma-sourcemap-loader": "^0.4.0",
+    "karma-webpack": "^5.0.1",
+    "mocha": "^10.8.2",
     "mocha-lcov-reporter": "^1.3.0",
-    "webpack": "^5.73.0"
+    "webpack": "^5.96.1"
   },
   "engines": {
     "node": ">=18"