feat: add llm keywords to language model base (#8115)

* update the keywords

* Update test_chatollama_component.py

* [autofix.ci] apply automated fixes

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Co-authored-by: Yuqi Tang <yuqi.tang@datastax.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/tests/unit/components/models/test_chatollama_component.py

@@ -51,7 +51,7 @@ class TestChatOllamaComponent(ComponentTestBaseWithoutClient):
             model="ollama-model",
             mirostat=0,
             format="json",
-            metadata={},
+            metadata={"keywords": ["model", "llm", "language model", "large language model"]},
             num_ctx=2048,
             num_gpu=1,
             num_thread=4,