move @arethetypeswrong/cli to optionalDependencies to fix CI on node 16

Author: Romex91

package.json

@@ -14,7 +14,6 @@
     "doc": "docs"
   },
   "devDependencies": {
-    "@arethetypeswrong/cli": "^0.17.3",
     "@babel/core": "^7.20.12",
     "@babel/preset-env": "^7.20.2",
     "@types/jest": "^29.5.14",
@@ -46,6 +45,9 @@
     "ts-jest": "^29.2.5",
     "typescript": "^5.6.2"
   },
+  "optionalDependencies": {
+    "@arethetypeswrong/cli": "^0.17.3"
+  },
   "dependencies": {
   },
   "peerDependencies": {