Update dependencies.

Author: davidlehn

package.json

@@ -41,22 +41,22 @@
     "@babel/plugin-transform-runtime": "^7.13.10",
     "@babel/preset-env": "^7.13.10",
     "@babel/runtime": "^7.13.10",
-    "babel-loader": "^8.0.5",
+    "babel-loader": "^8.0.6",
     "benchmark": "^2.1.4",
     "browserify": "^17.0.0",
-    "chai": "^4.3.3",
+    "chai": "^4.3.4",
     "core-js": "^3.9.1",
     "cors": "^2.7.1",
     "cross-env": "^7.0.3",
     "envify": "^4.1.0",
-    "eslint": "^7.21.0",
+    "eslint": "^7.22.0",
     "eslint-config-digitalbazaar": "^2.6.1",
     "esmify": "^2.1.1",
     "express": "^4.16.4",
     "fs-extra": "^9.1.0",
     "join-path-js": "0.0.0",
     "karma": "^5.2.3",
-    "karma-babel-preprocessor": "^8.0.0",
+    "karma-babel-preprocessor": "^8.0.1",
     "karma-browserify": "^8.0.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-edge-launcher": "^0.4.2",
@@ -69,11 +69,11 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-tap-reporter": "0.0.6",
     "karma-webpack": "^4.0.2",
-    "mocha": "^8.3.1",
+    "mocha": "^8.3.2",
     "mocha-lcov-reporter": "^1.3.0",
     "nyc": "^15.1.0",
     "watchify": "^3.11.1",
-    "webpack": "^4.29.5",
+    "webpack": "^4.46.0",
     "webpack-cli": "^4.5.0",
     "webpack-merge": "^5.7.3"
   },
@@ -101,8 +101,8 @@
     "test": "npm run test-node",
     "test-node": "cross-env NODE_ENV=test mocha --delay -t 30000 -A -R ${REPORTER:-spec} tests/test.js",
     "test-karma": "cross-env NODE_ENV=test karma start",
-    "coverage": "nyc --reporter=lcov --reporter=text-summary npm test",
-    "coverage-ci": "nyc --reporter=lcovonly npm run test",
+    "coverage": "cross-env NODE_ENV=test nyc --reporter=lcov --reporter=text-summary npm test",
+    "coverage-ci": "cross-env NODE_ENV=test nyc --reporter=lcovonly npm run test",
     "coverage-report": "nyc report",
     "lint": "eslint *.js lib/**.js tests/**.js"
   },