Merge pull request #277 from YosysHQ/krys/fix-ci

Fix failing `build_verific`

.github/workflows/ci.yml

@@ -31,6 +31,7 @@ jobs:
         with:
           repository: 'YosysHQ/yosys'
           path: 'yosys'
+          submodules: true
 
       - name: Runtime environment
         run: |