Chore: Update `ajv` to `v6.5.4`

package-lock.json

@@ -3,9 +3,9 @@
   "lockfileVersion": 1,
   "dependencies": {
     "ajv": {
-      "version": "6.5.3",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.3.tgz",
-      "integrity": "sha512-LqZ9wY+fx3UMiiPd741yB2pj3hhil+hQc8taf4o2QGRFpWgZ2V5C8HA165DY9sS3fJwsk7uT7ZlFEyC3Ig3lLg==",
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.4.tgz",
+      "integrity": "sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",

package.json

@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "ajv": "^6.5.3"
+    "ajv": "^6.5.4"
   },
   "private": true,
   "scripts": {