fix: add dummy OLLAMA_API_BASE environment variable for test execution

Author: crmne

.github/workflows/cicd.yml

@@ -50,6 +50,8 @@ jobs:
 
     - name: Run tests
       run: bundle exec rspec
+      env:
+        OLLAMA_API_BASE: http://localhost:11434/v1 # dummy
 
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v5