update all errors / warnings in schema to use f strings

update all errors / warnings in schema to use f strings

Fixed issue where error reporting for unexpected schema item when creating
objects like :class:`_schema.Table` would incorrectly handle an argument
that was itself passed as a tuple, leading to a formatting error.  The
error message has been modernized to use f-strings.

this change necessitated an update to flake8 as version 5 was
mis-interpreting f-strings that had semicolons in them.
Black is also unable to format some of these f-strings which had
to be broken out, unclear if there is a newer Black available.

Fixes: #10654
Change-Id: I703e94282c27ccf06f4aa315e8a11bd97b719170
(cherry picked from commit 2458ceee94e7bd6e5bf8d9d7270be8819bbe772c)