Publish new package versions to forc.pub-index repo

[sdankel]

example file:

{
    "name": "foo",
    "vers": "0.1.0",
    "cksum": "d867001db0e2b6e0496f9fac96930e2d42233ecd3ca0413e0753d4c7695d289c",
    "forc_version": "0.52.2",
    "deps" :[{ "name":"testdep", "req":"^0.24.0" }],
    "yanked": true,
}