anten-ka e9af6e969f fix(v2.4.3): flock serialization for bot_action_dispatch ...

Iteration 3 discovered a race condition: parallel CLI invocations of
change-lite-domain occasionally produced 'no secret in config' because
one process read config.json while another was mid-rewrite (jq -> tmp -> mv).
asyncio.Lock in bot.py only protects bot->bot races; CLI-level races and
bot+CLI mixed races were still possible.

- install.sh: bot_action_dispatch wraps dispatch in flock(1) on
  /var/lock/gotelegram-bot-action.lock, 30s timeout, EX_TEMPFAIL on timeout
- common.sh: flock added to critical deps; apt_pkg_for_cmd/dnf_pkg_for_cmd
  map flock -> util-linux
- common.sh: check_deps_present includes flock
- version bumped to 2.4.3 (common.sh + bot.py)

2026-04-10 13:35:22 +03:00

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