Wrong check for compatibility with older versions

[Shua-github]

Describe the bug
It is not possible to check for compatibility with earlier versions of the code

To Reproduce

try:
    from typing import ParamSpec
except ImportError:
    from typing_extensions import ParamSpec

Perform the following in the terminal:

vermin -v --backport typing --backport typing_extensions .

output:

Minimum required versions: 3.10

Expected behavior
The minimum version should be 3.9 or below

Environment (please complete the following information):

• Vermin version: 1.6.0

Additional context
not