Bump select2 from v3 to v4

[drjoeycadieux]

I update the select2 version to 4.0.8 in the package.json

• Resolves: #

Summary

TODO

• ...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[ChristophWurst]

See #35294

[skjnldsv]

I think we're removing it as legacy code 🙈
@susnux ?

[susnux]

Yes we are currently removing the last places where it is used. I would not updated this package untested as it currently might break user ldap and other legacy stuff.

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[drjoeycadieux]

Sorry, I'm here.

[joshtrichards]

Related overview: #1831 (though it looks to need updating)