cli/funnel: fix comment typo (#14840)

Updates #cleanup

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>

cmd/tailscale/cli/funnel.go

@@ -19,7 +19,7 @@ import (
 var funnelCmd = func() *ffcli.Command {
 	se := &serveEnv{lc: &localClient}
 	// previously used to serve legacy newFunnelCommand unless useWIPCode is true
-	// change is limited to make a revert easier and full cleanup to come after the relase.
+	// change is limited to make a revert easier and full cleanup to come after the release.
 	// TODO(tylersmalley): cleanup and removal of newFunnelCommand as of 2023-10-16
 	return newServeV2Command(se, funnel)
 }