Imports protected by TYPE_CHECKING are treated as mandatory

Describe the bug

Code which is protected by TYPE_CHECKING is listed as a required import. I'm not sure if to class this as a bug or a feature request but this template fits better.

For example:

from typing import TYPE_CHECKING
import foo
if TYPE_CHECKING:
    import bar

To Reproduce

bash-5.2$ echo $'from typing import TYPE_CHECKING\nimport foo\nif TYPE_CHECKING:\n    import bar' | fawltydeps --list-imports --code - --detailed
<stdin>:2: foo
<stdin>:4: bar

Expected behavior

Import protected by TYPE_CHECKING can be ignored.

Environment

• Version of the code: 0.13.2

Additional context