Adjust dependency so MS2 apps will build

Author: Christopher Henry

setup.py

@@ -35,7 +35,7 @@
     install_requires=[
         "networkx >= 2.4",
         "cobra >= 0.29.0",
-        "pandas >= 2.2.2",
+        "pandas >= 1.5.0",
         "scikit-learn == 1.2.0",  # version lock for pickle ML models
         "scipy >= 1.5.4",
         "chemicals >= 1.0.13",