chore: move dependencies to devDependencies

Author: prabhat-wednesday

package.json

@@ -89,7 +89,6 @@
     "axios-retry": "^3.3.1",
     "compression": "1.7.4",
     "core-js": "3.6.5",
-    "cross-env": "7.0.3",
     "deep-map-keys": "^2.0.1",
     "dotenv": "10.0.0",
     "express": "4.16.4",
@@ -164,6 +163,7 @@
     "chalk": "4.1.1",
     "ip": "1.1.5",
     "less": "^4.1.3",
+    "cross-env": "7.0.3",
     "eslint": "5.16.0",
     "eslint-config-airbnb": "17.1.0",
     "eslint-config-airbnb-base": "13.1.0",