Use min brian 2.7.1

Author: pgleeson

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
         python-version: [ "3.10" ]
         engine:
           - Arbor
-          - "Brian2:2.4"
+          - "Brian2:2.9.0"
           - Brian2
           - EDEN
           - "NEST:3.3"
@@ -63,7 +63,7 @@ jobs:
     - name: Install OMV
       run: |
         pip install .
-        pip install scipy sympy matplotlib cython pandas tables
+        pip install scipy sympy matplotlib "cython<3.1.0" pandas tables
         #sudo apt install octave
         sudo apt-get install -y subversion # for neuroConstruct full install...
 

omv/engines/getbrian2.py

@@ -5,7 +5,7 @@
 
 def install_brian2(version):
     if not version:
-        version = "2.5.3"
+        version = "2.7.1"
     try:
         pip_install("brian2", version)
         import brian2