Remove unused dependencies and refactor proxy handling

In some tests made on the testProxy function, the `new ProxyAgent()` was not working, even adding it the IP result was the same.

I've change it to the `new HttpsProxyAgent()` and it worked.

Refactored the proxy agent to center the same function/creation the same where it is used

package.json

@@ -74,7 +74,6 @@
     "node-mime-types": "^1.1.0",
     "node-windows": "^1.0.0-beta.8",
     "pino": "^8.11.0",
-    "proxy-agent": "^6.3.0",
     "qrcode": "^1.5.1",
     "qrcode-terminal": "^0.12.0",
     "redis": "^4.6.5",