Add explicit color-convert dependency (google-gemini#19460)

Author: chrstnb

package-lock.json

@@ -39,6 +39,7 @@
     "chalk": "^4.1.2",
     "cli-spinners": "^2.9.2",
     "clipboardy": "^5.0.0",
+    "color-convert": "^2.0.1",
     "command-exists": "^1.2.9",
     "comment-json": "^4.2.5",
     "diff": "^8.0.3",