Do not use the CI 4 session library

@ElTomTom Strictly speaking, no.
But the all settings in CI4's Session config file are applied.
So it seems you don't need to worry about Session settings if you set in CI4's Session config file correctly.

But there are so many settings:
https://www.php.net/manual/en/session.configuration.php
and CI4 Session does not touch some settings at all.
That is the settings are applied.

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