Downgraded requirement for numpy to <2.0.0

while pandeia.engine is <4.0.0

pyproject.toml

@@ -1,7 +1,6 @@
 [build-system]
 requires = [
     "setuptools>=61.0",
-    'numpy>=2.0.0',
 ]
 build-backend = "setuptools.build_meta"
 
@@ -22,7 +21,8 @@ dependencies = [
     'shiny>=1.0.0',
     'pandeia.engine>=3.0.0',
     'scipy',
-    'numpy>=1.15.1',
+    # Version <2.0 while pandeia.engine<4.0.0
+    'numpy>=1.15.1,<2.0.0',
     'requests>=2.19.1',
     'grequests>=0.7.0',
     'astropy>=5.3.0',
@@ -42,16 +42,20 @@ dependencies = [
 [project.scripts]
 tso = "gen_tso.__main__:main"
 
-[tool.setuptools]
-packages = ["gen_tso"]
-
 [tool.setuptools.dynamic]
 version = {attr = "gen_tso.version.__version__"}
 
 #https://setuptools.pypa.io/en/stable/userguide/datafiles.html
 [tool.setuptools.package-data]
 "gen_tso.data" = ["*"]
 
+#https://setuptools.pypa.io/en/stable/userguide/package_discovery.html
+[tool.setuptools.packages]
+find = {namespaces = false}  # Take only folders with a __init__.py file
+
+#[tool.setuptools]
+#packages = ["gen_tso"]
+
 [tool.pytest.ini_options]
 filterwarnings = [
     "ignore:datetime.datetime.utcfromtimestamp:DeprecationWarning",