Use ruff linter to fix issues and provide consistent formatting

providers/sigrefdata/file_download_sig_ref_data_provider.py

@@ -1,6 +1,6 @@
 import logging
 from datetime import datetime
-from threading import Thread, Event
+from threading import Event, Thread
 
 import pytz
 from requests import ReadTimeout
@@ -15,7 +15,7 @@ class FileDownloadSIGRefDataProvider(SIGRefDataProvider):
     """Generic SIG ref data provider class for providers that fetch their data from the web by downloading a file."""
 
     def __init__(self, sig_name, provider_config, url, poll_interval):
-        """ Set up the provider, note poll_interval is in *days*."""
+        """Set up the provider, note poll_interval is in *days*."""
         super().__init__(sig_name, provider_config)
         self._url = url
         self._poll_interval = poll_interval
@@ -26,8 +26,7 @@ class FileDownloadSIGRefDataProvider(SIGRefDataProvider):
     def start(self):
         # Fire off the polling thread. It will poll immediately on startup, then sleep for poll_interval between
         # subsequent polls, so start() returns immediately and the application can continue starting.
-        logging.info(
-            f"Set up query of {self.sig_name} SIG ref data every {self._poll_interval!s} days.")
+        logging.info(f"Set up query of {self.sig_name} SIG ref data every {self._poll_interval!s} days.")
         self._thread = Thread(target=self._run, name=f"FileDownloadSIGRefDataProvider-{self.sig_name}")
         self._thread.start()