Update go-llm module version and modify system prompt handling in knowledge integration

pkg/agents/knowledge_processor.go

@@ -51,11 +51,9 @@ Here is the knowledge I have gathered from ` + fmt.Sprint(len(sources)) + ` sour
 		systemPrompt += "\n\nI still have some questions that I could not find an answer to:\n" + strings.Join(knowledge.RemainingQuestions, "\n")
 	}
 
-	systemPrompt += "\n\nUsing the sources, write an answer to the original question.  Note any information that wasn't able to be answered."
-
 	res, err := a.WithSystemPrompt(systemPrompt).
 		WithSystemPromptSuffix(``).
-		CallAndExecute(ctx)
+		CallAndExecute(ctx, "Using the sources, write an answer to the original question.  Note any information that wasn't able to be answered.")
 	if err != nil {
 		return "", err
 	}