[Feature Request] Support for tagging certain versions

[DanielKohn1208]

Describe the bug

Will tagging specific versions of plugins be added? This is a feature that several plugins recomend having when installing them. Like luasnip, toggleterm, etc.

[savq]

You can pass a tag to git clone --branch, so the branch argument in Paq can also take a tag.

For example, if you want to list Luasnip with the tag v2.0.0 you'd write:

require 'paq' {
    { 'L3MON4D3/LuaSnip', branch = 'v2.0.0' },
}