The exception that is generated on parsing errors has changed in Python
3.12, match on the generic ValueError instead. Also switch to using
the simpler assertRaises() call instead of explicitly dealing with
exceptions.
Note that this is just a temporary workaround, we should really move
away for using pkg_resources completely, see [0] and [1].
[0] https://setuptools.pypa.io/en/latest/pkg_resources.html
[1] https://importlib-resources.readthedocs.io/en/latest/migration.html
Change-Id: I20422194f6fc6d1c4ba49da754a2c3aab99a282c
c7d98564d0