fix(ollama_chat.py): accept api key as a param for ollama calls

allows user to call hosted ollama endpoint using bearer token for auth

litellm/main.py

@@ -1941,9 +1941,16 @@ def completion(
                 or "http://localhost:11434"
             )
 
+            api_key = (
+                api_key
+                or litellm.ollama_key
+                or os.environ.get("OLLAMA_API_KEY")
+                or litellm.api_key
+            )
             ## LOGGING
             generator = ollama_chat.get_ollama_response(
                 api_base,
+                api_key,
                 model,
                 messages,
                 optional_params,