Fix dependency load order when bundling

[dthigpen]

For example:
Top level datapack's lantern load file:

// top_level
{
    "values": [
        "dt.inventory:load",
        "dt.array:load"
    ]
}

// dt.inventory
{
    "values": [
        "dt.array:load",
        "dep2:load"
    ]
}

// dt.array
{
    "values":[]
}

These dependencies should result in a final bundled load file of:

// top_level
{
    "values": [
        "dt.array:load",
        "dep2:load",
        "dt.inventory:load",
    ]
}

But instead we get a load file where dt.array:load comes after dt.inventory:load since it was specified after in the top level file