Public api: Fix positional arguments

[iLLiCiTiT]

Changelog Description

Fix positional arguments usage in public api.

Additional review information

Fix get_addon_endpoint and get_addon_url by not using kwargs when passing arguments to the function.

Testing notes:

1. It is possible to use get_addon_endpoint and get_addon_url from public api with subpaths.

endpoint = ayon_api.get_addon_endpoint(
    "core",
    "1.9.7",
    "test",
)
print(endpoint)