Fix Failing Pre-Commit Hook

The flake8 pre-commit hook was failing due to a configuration error with
the latest pre-commit and flake8 versions.

Signed-off-by: Hassan Abouelela <[email protected]>

Author: HassanAbouelela

.pre-commit-config.yaml

@@ -22,4 +22,3 @@ repos:
         entry: poetry run flake8
         language: system
         types: [python]
-        require_serial: true