chore: move embedding deps to RAG tool where they are needed (#1210)

`EMBEDDING_DEPS` were wrongly associated with `vector_io` providers.
They are needed by
https://github.com/meta-llama/llama-stack/blob/main/llama_stack/providers/utils/memory/vector_store.py#L142
and related code and is used by the RAG tool and as such should only be
needed by the `inline::rag-runtime` provider.

llama_stack/providers/registry/tool_runtime.py

@@ -20,7 +20,18 @@ def available_providers() -> List[ProviderSpec]:
         InlineProviderSpec(
             api=Api.tool_runtime,
             provider_type="inline::rag-runtime",
-            pip_packages=[],
+            pip_packages=[
+                "blobfile",
+                "chardet",
+                "pypdf",
+                "tqdm",
+                "numpy",
+                "scikit-learn",
+                "scipy",
+                "nltk",
+                "sentencepiece",
+                "transformers",
+            ],
             module="llama_stack.providers.inline.tool_runtime.rag",
             config_class="llama_stack.providers.inline.tool_runtime.rag.config.RagToolRuntimeConfig",
             api_dependencies=[Api.vector_io, Api.inference],