licence reporting seems broken with .36

[bd-gpasternak]

python -m piplicenses -f json

was reporting:
{
"License": "MIT License",
"Name": "referencing",
"Version": "0.35.0"
},

now reporting:
{
"License": "UNKNOWN",
"Name": "referencing",
"Version": "0.36.0"
},
looks like the meta data isn't compatible with python 3.10 anymore.
maybe the loss of Classifier: License :: OSI Approved :: MIT License

[Julian]

It's pip-licenses that has to be updated here actually to support PEP 639 (which is now recommended for use).

raimon49/pip-licenses#213 is the issue tracking it. I'm not sure whether any help is needed there but you could offer it to get it over the line.