use correct name for python-ligo-lw
Description
Following on from !1044 (merged), the package is called python-ligo-lw
and not python2-ligo-lw
and is causing build failures:
https://git.ligo.org/lscsoft/lalsuite/pipelines/87886/failures
python-ligo-lw
should probably be updated to following the correct naming convention for the Python2 package.
API Changes and Justification
Backwards Compatible Changes
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This change introduces no API changes -
This change adds new API calls
Backwards Incompatible Changes
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This change modifies an existing API -
This change removes an existing API