Update spack.yaml

spack.yaml

@@ -20,7 +20,7 @@ spack:
   - pkgs:
     # some EBRAINS-related simulators
     - py-numpy ^python@3.8.10 
-    #- py-scipy ^python@3.8.10 
+    - py-scipy ^python@3.8.10 
     #- py-pip ^python@3.8.10 
     #- nest +gsl +python ^python@3.8.10 %gcc@9.3.1
     #- arbor ^python@3.8.10