Flake8 Use f-string

Flake8-use-fstring is a Flake8 plugin designed to enforce the use of f-strings for string formatting within Python projects. It checks for instances where `%` formatting or the `.format()` method are used and suggests their replacement with f-strings. The current version is 1.4, and it sees active, though infrequent, maintenance releases, primarily for bug fixes and compatibility updates.