Update resources.py

Updated get_number_of_gpus function

Signed-off-by: Parth Mandaliya <parthx.mandaliya@intel.com>

openfl/experimental/utilities/resources.py

@@ -1,6 +1,5 @@
 # Copyright (C) 2020-2023 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
-
 """openfl.experimental.utilities.resources module."""
 
 from logging import getLogger
@@ -25,6 +24,6 @@ def get_number_of_gpus() -> int:
         stdout = op.stdout.decode().strip()
         return len(stdout.split("\n"))
     except FileNotFoundError:
-        logger.warning(f'No GPUs found! If this is a mistake please try running "{command}" '
-                       + 'manually.')
+        logger.warning(f"No GPUs found! If this is a mistake please try running '{command}' "
+                       + "manually.")
         return 0