* Upgrade syntax with pyupgrade --py38-plus Signed-off-by: Hugo van Kemenade <[email protected]> * Convert to f-strings with flynt Signed-off-by: Hugo van Kemenade <[email protected]> * Format with Black Signed-off-by: Hugo van Kemenade <[email protected]> * Remove redundant mock backport dependency Signed-off-by: Hugo van Kemenade <[email protected]> * isort imports Signed-off-by: Hugo van Kemenade <[email protected]> * Add changelog entry Signed-off-by: Hugo van Kemenade <[email protected]> --------- Signed-off-by: Hugo van Kemenade <[email protected]>