python: Reformat with Ruff formatter.

https://docs.astral.sh/ruff/formatter/

Signed-off-by: Anders Kaseorg <anders@zulip.com>

puppet/kandra/files/nagios_plugins/zulip_zephyr_mirror/check_personal_zephyr_mirrors

@@ -8,6 +8,7 @@ This script works by just monitoring the files under
 mirrors when they receive the messages sent every minute by
 /etc/cron.d/test_zephyr_personal_mirrors
 """
+
 import os
 import sys
 import time

puppet/kandra/files/nagios_plugins/zulip_zephyr_mirror/check_user_zephyr_mirror_liveness

@@ -6,6 +6,7 @@ Nagios plugin to check that our MIT users' Zephyr mirrors are running.
 It must be run on a machine that is using the live database for the
 Django ORM.
 """
+
 import os
 import sys
 from datetime import timedelta

puppet/kandra/files/nagios_plugins/zulip_zephyr_mirror/check_zephyr_mirror

@@ -9,6 +9,7 @@ run out of cron.
 
 See puppet/kandra/files/cron.d/zephyr-mirror for the crontab details.
 """
+
 import os
 import sys
 import time

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_cron_file

@@ -1,7 +1,9 @@
 #!/usr/bin/env python3
-""" Nagios plugin paired with a cron job.  This just verifies that the
+"""
+Nagios plugin paired with a cron job.  This just verifies that the
 file output by the cron job is correct.
 """
+
 import sys
 import time
 from typing import Tuple

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_queue_worker_errors

@@ -3,6 +3,7 @@
 """
 Nagios plugin to check that none of our queue workers have reported errors.
 """
+
 import glob
 import os
 import sys

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_send_receive_time

@@ -6,6 +6,7 @@ Script to provide information about send-receive times.
 It must be run on a machine that is using the live database for the
 Django ORM.
 """
+
 import argparse
 import os
 import random

puppet/zulip/files/nagios_plugins/zulip_postgresql/check_postgresql_replication_lag

@@ -6,6 +6,7 @@ connects to PostgreSQL as has been granted the `pg_monitor` role.
 
 This can only use stdlib modules from python.
 """
+
 import configparser
 import re
 import subprocess