deps: add @npmcli/agent

Author: wraithgar

package.json

@@ -33,6 +33,7 @@
   "author": "GitHub Inc.",
   "license": "ISC",
   "dependencies": {
+    "@npmcli/agent": "^1.1.0",
     "agentkeepalive": "^4.2.1",
     "cacache": "^17.0.0",
     "http-cache-semantics": "^4.1.1",