Update dependency flake8 to v7

renovate[bot] · web-flow · commit 35815d6688be · 2025-02-16T18:56:35.000Z
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,4 +1,4 @@
 # Includes base requirements as well as dev requirements
 -r requirements.txt
-flake8==3.8.3
+flake8==7.1.2
 codecov==2.1.9
