main: Use f-string when listing profiles
As advised by pylint:
src/powerprofilesctl:144:19: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)
As advised by pylint:
src/powerprofilesctl:144:19: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)