Update omv-ci.yml

Author: pgleeson

.github/workflows/omv-ci.yml

@@ -21,8 +21,6 @@ jobs:
            - jNeuroML_validate
            - PyNEST
            - "PyNEST:2.20.0"  
-           - "PyNEST:3.2"    
-           - "PyNEST:3.3"  
            - "PyNEST:3.4"    
            - "PyNEST:3.6"    
            - "PyNEST:3.8"