Merge pull request #12 from LowellObservatory/numpy2

Do not allow Numpy 2.0 yet.

Author: tbowers7

setup.cfg

@@ -19,6 +19,7 @@ classifiers =
     Programming Language :: Python
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
     Topic :: Documentation :: Sphinx
     Topic :: Scientific/Engineering :: Astronomy
     Topic :: Software Development :: Libraries :: Python Modules
@@ -38,7 +39,7 @@ install_requires =
     darkdetect
     ccdproc
     matplotlib
-    numpy>=1.22
+    numpy>=1.23,<2.0.0
     scipy>=1.9
     PySimpleGUI-4-foss
     requests