Annotatetd Types do not support new Generic syntax

[seanrcollings]

This works

T = typing.TypeVar("T")

ConfigOption = Annotated[
    T,
    arc.Option(
        name="config",
        short="c",
        desc="Path to JSON config file containing Panopto and Canvas credentials",
        envvar="CONFIG",
    ),
]

This does not

type ConfigOption[T] = Annotated[
    T,
    arc.Option(
        name="config",
        short="c",
        desc="Path to JSON config file containing Panopto and Canvas credentials",
        envvar="CONFIG",
    ),
]