Describe the bug

The newest version of black started failing on our CI due to an error about not being able to parse a line that it used to be able to parse just fine.

To Reproduce

On the file pyomo/contrib/pyros/util.py: black pyomo/contrib/pyros/util.py

The resulting error is:

error: cannot format pyomo/contrib/pyros/util.py: Cannot parse: 2009:77: return f"{attr_val_str:{f'{self._ATTR_FORMAT_LENGTHS[attr_name]}'}}"

Expected behavior

It doesn't just error and fail on that file.

Environment

• Black's version: 24.4.1
• OS and Python version: MacOS 3.11; Ubuntu 22.04 3.10