Update 8.0.0.sql to fix admin lockout bug

[mrkalchemy]

Questions	Answers
Description?	Added SQL UPDATE statements to upgrade process to fix problem cause by missing default values for new date columns in session tables. If MariaDB or MySQL is configured to allow zero dates admin users will be locked out of the backoffice interface unless they manually delete cookies.
Type?	bug fix
BC breaks?	no
Deprecations?	no
Fixed ticket?	Fixes #PrestaShop/PrestaShop#32709
Sponsor company	-
How to test?	Upgrading a 1.7.8.9 install to 8.0.0+ should not lockout backoffice user.

[0x346e3730]

Hello @mrkalchemy and thank you for your contribution !

I've rebased your PR with the dev branch to include this fix that was recently merged, otherwise the CI was red.

[hibatallahAouadni]

Hello @mrkalchemy

Thanks for your PR 🚀
Ping @PrestaShop/prestashop-core-developers can someone please validated the linked issue 🙏
And as the issue will be validated by Dev, this PR can be tested by Dev 😉

Thanks!

[mrkalchemy]

I just discovered a problem with my original fix while doing some further testing on a different server. If the server had NO_ZERO_IN_DATE set in the [sql_mode] system variable then the sql would fail to run and not fix the issue. It's a bit of an edge case but may as well fix it now. Now it uses < to check if the date is before the 1970 epoch.