Restrict to numpy 1.x (#623)

The new major version release of Numpy is incompatible with modules
compiled against Numpy 1.x. For both SmartSim and SmartRedis we request
a 1.x version of numpy. This is needed in SmartSim because some of the
downstream dependencies request NumPy.

[ committed by @ashao ]
[ reviewed by @al-rigazzi ]

doc/changelog.md

@@ -15,13 +15,19 @@ To be released at some future point in time
 
 Description
 
+- Pin NumPy version to 1.x
 - New launcher support for SGE (and similar derivatives)
 - Fix test outputs being created in incorrect directory
 - Improve support for building SmartSim without ML backends
 - Update packaging dependency
 
 Detailed Notes
 
+- The new major version release of Numpy is incompatible with modules
+  compiled against Numpy 1.x. For both SmartSim and SmartRedis we
+  request a 1.x version of numpy. This is needed in SmartSim because
+  some of the downstream dependencies request NumPy
+  ([SmartSim-PR623](https://github.com/CrayLabs/SmartSim/pull/623))
 - SGE is now a supported launcher for SmartSim. Users can now define
   BatchSettings which will be monitored by the TaskManager. Additionally,
   if the MPI implementation was built with SGE support, Orchestrators can

setup.py

@@ -179,6 +179,7 @@ def has_ext_modules(_placeholder):
     "pydantic==1.10.14",
     "pyzmq>=25.1.2",
     "pygithub>=2.3.0",
+    "numpy<2"
 ]
 
 # Add SmartRedis at specific version