Loosen numpy constraints (#278)

I believe these constraints were taken from
mlir/python/requirements.txt, which seems arbitrarily constrained. I
can't find anything in newer numpy versions that would break the
bindings, and I've been using 2.3.5 with these bindings and the extras
for a while with no issues.

Author: ashermancinelli

projects/eudsl-python-extras/requirements.txt

@@ -1,2 +1,2 @@
 cloudpickle>=3.0.0
-numpy>=1.19.5, <=2.1.2
+numpy>=1.19.5

projects/mlir-python-bindings/pyproject.toml

@@ -8,7 +8,7 @@ name = "mlir-python-bindings"
 dynamic = ["version"]
 requires-python = ">=3.8"
 dependencies = [
-    "numpy>=1.19.5, <=2.3.0",
+    "numpy>=1.19.5",
     "PyYAML>=5.4.0, <=6.0.1",
     "ml_dtypes>=0.1.0, <=0.6.0; python_version<'3.13'",
     "ml_dtypes>=0.5.0, <=0.6.0; python_version>='3.13'",