Update dependency pyflakes to v3.4.0

Author: renovate[bot]

requirements.txt

@@ -14,7 +14,7 @@ packaging==25.0
 platformdirs==4.3.8
 pluggy==1.6.0
 pycodestyle==2.13.0
-pyflakes==3.3.2
+pyflakes==3.4.0
 pylint==3.3.7
 pyright==1.1.402
 pytest==8.4.1