fix(deps): unpin non-dev dependencies

Author: cwillisf

package-lock.json

@@ -20,9 +20,9 @@
     "semantic-release": "semantic-release"
   },
   "dependencies": {
-    "ajv": "6.3.0",
-    "jszip": "3.1.5",
-    "pify": "4.0.1"
+    "ajv": "^6.3.0",
+    "jszip": "^3.1.5",
+    "pify": "^4.0.1"
   },
   "devDependencies": {
     "@commitlint/cli": "7.2.1",