handle ABI < 2 (#171)

parameterize numpy testing (#172)

* parameterize numpy

* typo

* specify numpy

* exclude 3.12 + 1.22

* typo

* more precise exclude

* ID the job

* increase to 1.24

use dtype's fields PyObject* now (#170)

* use dtype's fields PyObject* now

* bump version for this to 3.4.4

check for PDAL_DRIVER_PATH in the environment before accessing

bump version number to 3.4.2

bump 3.4.1 for release churn

add note about Numpy >= 1.22

bump version to 3.3.0 for release

drop pytest reinstall

list changes