BUG: new numpy deprecations

[bsipocz]

 =========================== short test summary info ============================
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/__init__.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/core.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/__init__.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/setup_package.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/test_astrometry_net.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/test_astrometry_net.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/test_astrometry_net_remote.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/astrometry_net/tests/test_astrometry_net_remote.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/utils/timer.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/utils/tests/test_timer.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/utils/tests/test_timer.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/conesearch.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/tests/test_conesearch.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/tests/test_conesearch.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/validator/validate.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/validator/tests/test_validate.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)
ERROR ../../.tox/py311-test-alldeps-devdeps-cov/lib/python3.11/site-packages/astroquery/vo_conesearch/validator/tests/test_validate.py - DeprecationWarning: `maximum_sctype` is deprecated. Use an explicit dtype like int64 or float64 instead. (deprecated in NumPy 2.0)

[bsipocz]

These all seem to have upstream (astropy) origins, and should be fixed once the proper dev version is being picked up. (Currently, for an unknown reason it's ~1month old, and therefore is not yet contain the fix).

I'm keeping the issue open until the install succeeds, to track that we know about these devtest failure.