feat: add update warning to create-cli and make it single command like before

Author: sorccu

package-lock.json

@@ -37,14 +37,25 @@
   ],
   "oclif": {
     "bin": "create-cli",
-    "commands": "./dist/commands",
-    "default": "bootstrap"
+    "commands": {
+      "strategy": "single",
+      "target": "./dist/commands/bootstrap"
+    },
+    "plugins": [
+      "@oclif/plugin-help",
+      "@oclif/plugin-warn-if-update-available"
+    ],
+    "warn-if-update-available": {
+      "timeoutInDays": 30,
+      "message": "<%= config.name %> update available from <%= chalk.greenBright(config.version) %> to <%= chalk.greenBright(latest) %>. To update, run `npm install -D checkly@latest`"
+    }
   },
   "homepage": "https://github.com/checkly/checkly-cli#readme",
   "dependencies": {
     "@oclif/core": "4.2.7",
     "@oclif/plugin-help": "6.2.25",
     "@oclif/plugin-plugins": "5.4.33",
+    "@oclif/plugin-warn-if-update-available": "3.1.33",
     "axios": "1.7.4",
     "chalk": "4.1.2",
     "debug": "4.3.4",