Reduce log output for Pint library (#10803)

- Reduce clutter in app startup due to unit redefinition

src/backend/InvenTree/InvenTree/conversion.py

@@ -1,5 +1,6 @@
 """Helper functions for converting between units."""
 
+import logging
 import re
 from typing import Optional
 
@@ -14,6 +15,9 @@ import structlog
 
 logger = structlog.get_logger('inventree')
 
+# Disable log output for Pint library
+logging.getLogger('pint').setLevel(logging.ERROR)
+
 
 def get_unit_registry():
     """Return a custom instance of the Pint UnitRegistry."""