Add a `versions.json` and/or `versions.xml` to the plugin endpoint to get every versions programatically

[Guts]

Feature Description

It could be really convenient to be able to get the plugin details and versions in a well-known format like JSON or XML.

Example:

GET https://plugins.qgis.org/plugins/profile_manager.json

Something like:

{
  "description": "A QGIS Plugin that provides an UI to easily manage your profiles and import various settings from one profile to another. Compatible with QGIS Deployment Toolbelt (QDT).",
  "homepage": "https://wheregroup.github.io/profile_manager/",
  "latest_version": "0.7.3",
  "versions": [
    {
      "version": "0.7.3",
      "experimental": false,
      "qgis_min": "3.28.0",
      "qgis_max": "4.99.0",
      "downloads": 45,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2026-01-20T08:57:52.359736+00:00"
    },
    {
      "version": "0.7.2",
      "experimental": false,
      "qgis_min": "3.28.0",
      "qgis_max": "4.99.0",
      "downloads": 920,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2025-11-18T18:03:22.123002+00:00"
    },
    {
      "version": "0.7.1",
      "experimental": false,
      "qgis_min": "3.28.0",
      "qgis_max": "4.99.0",
      "downloads": 562,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2025-10-27T10:40:25.747899+00:00"
    },
    {
      "version": "0.7.0",
      "experimental": false,
      "qgis_min": "3.28.0",
      "qgis_max": "4.99.0",
      "downloads": 225,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2025-10-22T13:14:20.747167+00:00"
    },
    {
      "version": "0.6.0",
      "experimental": false,
      "qgis_min": "3.28.0",
      "qgis_max": "3.99.0",
      "downloads": 1919,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2025-04-03T13:47:12.646346+00:00"
    },
    {
      "version": "0.5.0-beta2",
      "experimental": true,
      "qgis_min": "3.28.0",
      "qgis_max": "3.99.0",
      "downloads": 618,
      "uploaded_by": "jkroegerwg",
      "upload_datetime": "2024-11-05T15:21:16.224009+00:00"
    }
  ]
}

Side feature request: make it possible to call https://plugins.qgis.org/plugins/profile_manager/?latest or https://plugins.qgis.org/plugins/profile_manager/latest/ would be fantastic.

Reference to Feature

No response