insisting on numpy<2 in dev extra; not enforcing numpy>=2 otherwise

pyproject.toml

@@ -14,10 +14,7 @@ authors = [
 ]
 dependencies = [
     "jinja2",
-    # Building with numpy 2.0 is compatible with numpy 1.x, but it
-    # is only available on Python 3.9+
-    "numpy >= 2.0.0; python_version > '3.8'",
-    "oldest-supported-numpy; python_version <= '3.8'",
+    "numpy>=1.7",
     "qdldl",
     "scipy>=0.13.2",
     "setuptools",
@@ -32,12 +29,17 @@ dev = [
     "pre-commit",
     "pytest>=6",
     "torch",
+
     # Exclude scipy 1.12 because the random sparse array function started returning
     # the transpose of the original, breaking the unit tests. This was fixed in 1.13.0.
     # This shouldn't actually affect the users, so there shouldn't be a need to exclude
     # 1.12 on a user's machine.
     # ref: https://github.com/scipy/scipy/issues/20027
     "scipy!=1.12.0",
+
+    # As of 07/27/24, torch on many platforms (intel macs, Windows), cannot seem to coexist
+    # with numpy>=2; Since we do need torch for development purposes, we'll pin np<2
+    "numpy<2"
 ]
 mkl = [
     "osqp-mkl",