Nimble downloading old packages.json
Whenever Nimblle tries to download package index, it downloads an old file with 4220 lines and 303 items. The last package is:
```json
  {
    "name": "listsv",
    "url": "git://github.com/srwiley/listsv.git",
    "method": "git",
    "tags": [
      "singly linked list",
      "doubly linked list"
    ],
    "description": "Basic operations on singly and doubly linked lists.",
    "license": "MIT",
    "web": "https://github.com/srwiley/listsv"
  }
```

Nimbie version:
```
nimble v0.14.2 compiled at 2023-08-01 01:51:39
git hash: couldn't determine git hash
```