zthumbor: Rename thumbor.conf to thumbor_settings.py.

So we can apply all our lint checks to it.

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

puppet/zulip/files/supervisor/conf.d/thumbor.conf

@@ -1,5 +1,5 @@
 [program:zulip-thumbor]
-command=/home/zulip/deployments/current/zulip-thumbor-venv/bin/thumbor --port=9995 --conf=/home/zulip/deployments/current/zthumbor/thumbor.conf
+command=/home/zulip/deployments/current/zulip-thumbor-venv/bin/thumbor --port=9995 --conf=/home/zulip/deployments/current/zthumbor/thumbor_settings.py
 user=zulip
 directory=/home/zulip/deployments/current/
 autostart=true

tools/run-dev.py

@@ -151,7 +151,7 @@ def server_processes() -> List[List[str]]:
         ['env', 'PGHOST=127.0.0.1',  # Force password authentication using .pgpass
          './puppet/zulip/files/postgresql/process_fts_updates', '--quiet'],
         ['./manage.py', 'deliver_scheduled_messages'],
-        ['/srv/zulip-thumbor-venv/bin/thumbor', '-c', './zthumbor/thumbor.conf',
+        ['/srv/zulip-thumbor-venv/bin/thumbor', '-c', './zthumbor/thumbor_settings.py',
          '-p', f'{thumbor_port}'],
     ]