TEMPORARY: Fix for numpy 2.0 representation changes for testing

Due to ASDF issues related to changes in how `numpy` 2.0 represents
for the purposes of printing floats (used by ASDF), PyYAML can no longer
handle the new representation gracefully.
This change simply forces `numpy` 2.0.dev+ versions of numpy to use the
`numpy` 1.25 representation format, which is supported by PyYAML.
Note that this "fix" only works when running tests, not in general.

romancal/conftest.py

@@ -3,7 +3,15 @@
 import os
 import tempfile
 
+import numpy as np
 import pytest
+from astropy.utils import minversion
+
+# HACK: This is a temporary workaround for ASDF not being able to handle how
+#       numpy 2.0.dev+ represents (prints) floating point numbers. This simply
+#       forces numpy to use the old printing method while running the tests only.
+if minversion(np, "2.0.dev"):
+    np.set_printoptions(legacy="1.25")
 
 
 @pytest.fixture