fix(rivetkit): prevent sleep races during disconnect and db work

Author: NathanFlurry

rivetkit-typescript/packages/rivetkit/src/actor/instance/connection-manager.ts

@@ -335,6 +335,7 @@ export class ConnectionManager<
 
 		this.#actor.inspector.emitter.emit("connectionsUpdated");
 		this.#pendingDisconnectCount += 1;
+		this.#actor.resetSleepTimer();
 
 		const attributes = {
 			"rivet.conn.id": conn.id,

rivetkit-typescript/packages/rivetkit/src/actor/instance/mod.ts

@@ -2436,6 +2436,10 @@ export class ActorInstance<
 
 		if (timeoutMs !== undefined) {
 			this.#sleepTimeout = setTimeout(() => {
+				if (this.#canSleep() !== CanSleep.Yes) {
+					this.resetSleepTimer();
+					return;
+				}
 				this.startSleep();
 			}, timeoutMs);
 		}