Update test dependencies

Author: renovate-bot

package.json

@@ -74,10 +74,10 @@
     "@types/express": "^4.17.2",
     "@types/knex": "^0.15.2",
     "@types/lodash.clonedeep": "^4.5.6",
-    "@types/mocha": "^5.2.7",
+    "@types/mocha": "^9.0.0",
     "@types/node": "^10.0.0",
     "@types/request": "^2.48.3",
-    "@types/sinon": "^7.5.0",
+    "@types/sinon": "^10.0.0",
     "@types/supertest": "^2.0.8",
     "@types/verror": "^1.10.3",
     "chai": "^4.1.2",
@@ -97,14 +97,14 @@
     "grunt": "^1.0.2",
     "grunt-contrib-concat": "^1.0.1",
     "grunt-contrib-uglify": "^1.0.2",
-    "husky": "^3.0.9",
+    "husky": "^7.0.0",
     "installed-check": "^3.0.0",
-    "mocha": "^6.2.2",
-    "nock": "^11.7.0",
+    "mocha": "^9.0.0",
+    "nock": "^13.0.0",
     "npm-run-all": "^4.1.5",
-    "nyc": "^14.1.1",
-    "sinon": "^7.5.0",
-    "supertest": "^4.0.2",
+    "nyc": "^15.0.0",
+    "sinon": "^11.0.0",
+    "supertest": "^6.0.0",
     "typescript": "^3.7.2",
     "webmention-testpinger": "^0.7.0"
   }