swarm-services-cert, swarm-services-cert-renew and hive-tls-resign are
oneshots, which systemd gives no start timeout, and the root-only
`ca/pem` curl set no connect or total timeout. A store that accepted the
connection and never answered held the attempt forever: no failure, so
no store-retry restart, and a hung renew unit swallowed every later
timer tick.
The curl now gives up after 10s to connect and 30s overall. Each unit
gets a TimeoutStartSec: 20min for the services-leaf pair (the script
waits up to 10min on its lock), 10min for the gateway leaf. The
`--no-block` comment no longer cites a TimeoutStartSec that did not
exist.
module-eval-hive-tls gains a case pinning both.
Closes#5303
a67097f440