Fix ruff error suppression of typing.Optional

[OtabekRintaro]

Problem:
Ruff rules are not suppressed. Specifically, typing.Optional, previously UP007.

Cause:
According to Ruff's latest release's notes:

non-pep604-annotation-union (UP007) has now been split into two rules.
UP007 now applies only to typing.Union, while
non-pep604-annotation-optional (UP045) checks for use of
typing.Optional. UP045 has also been stabilized in this release, but you
may need to update existing include, ignore, or noqa settings to
accommodate this change.

Issue: #712

[m-reuter]

thanks, can you also fix the spell check error (just replace "softwares" by "packages")
Also instead of suppressing RUFF rules, it would be better to fix the underlying problem and use the newer convention (unless that has other consequences).