Update errors.py to make Ruff happy

This includes replacing `from sys import exit` with `import sys` and then using `sys.exit()` instead. Ruff complains about `exit` shadowing a built-in.

trolldb/errors/errors.py

@@ -5,7 +5,7 @@
 """
 
 from collections import OrderedDict
-from sys import exit
+import sys
 from typing import ClassVar, NoReturn, Self
 
 from fastapi import Response
@@ -226,7 +226,7 @@ def sys_exit_log(
         """
         _, msg = self.get_error_details(extra_information, status_code)
         logger.error(msg)
-        exit(exit_code)
+        sys.exit(exit_code)
 
     @property
     def fastapi_descriptor(self) -> dict[StatusCode, dict[str, str]]: