Add logs method and deprecate events

[ytkimirti]

We are renaming QStash "events" to "logs" to avoid confusion with the Workflow events.

Deprecations

• Deprecated the client.events() method. You should use the client.logs() method instead.
• Deprecated the types Event, EventPayload and GetEventsPayload. If you were using these types, you should now use the Logs, LogPayload and GetLogsPayload types instead.

[linear]

DX-1606 Remove QStash LLM and rename events -> logs