Install ollama in test-ollama job

.github/workflows/spring-ai-integration-tests.yml

@@ -17,6 +17,12 @@ jobs:
       - name: Checkout the action
         uses: actions/checkout@v4
 
+      - name: Install Ollama
+        run: |
+          curl -fsSL https://ollama.com/install.sh | sh
+          ollama serve &
+          sleep 10  # Give Ollama time to start up
+
       - name: Configure Testcontainers
         run: |
           mkdir -p $HOME