FIX: Hotfix for git archival

[larsoner]

Unexpected behavior with git archival and setuptools_scm:

larsoner:~/Desktop/openmeeg-2.5.9/wrapping/python$ python -m setuptools_scm -c pyproject.toml
('ERROR: no version found for', Namespace(root=None, config='pyproject.toml', strip_dev=False, command=None))

so instead let's do

larsoner:~/Desktop/openmeeg-2.5.9$ python -m setuptools_scm -c wrapping/python/pyproject.toml
2.5.9

[larsoner]

Okay this also fixes a problem where we were inadvertently modifying LICENSE.txt when getting OpenBLAS using the NumPy scripts. Neat that setuptools_scm ended up finding a little bug for us by marking the source tree as dirty!