This commit adds timeout handling to the Llama prompt execution in the Llama class. It introduces a timeoutInMinutes property in the CopilotActionPrompt interface and uses it to set a timeout for the prompt execution. If the prompt execution exceeds the specified timeout, a LLMTimeoutException is thrown, indicating that the prompt has timed out. This change enhances the reliability and responsiveness of the Llama service by preventing long-running prompts from blocking the execution flow.
