[TASK] Fix TCA deprecations

[linawolf]

No description provided.

[froemken]

Hi @linawolf

I have closed this PR as I got the same issue while building the testing environment for PR #106

Stefan

[froemken]

Just learned. Step by Step.

[sbuerk]

Was to quick - was on it to modify the commit message to:

[TASK] Mitigate TCA automigration for `fe_users`

This change modifies the TCA override for table
`fe_users` to mitigate automatic TCA migration
for deprecated numerical items definition, using
associative naming now.

Related: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77626

I prefer to have commit message telling something
usefull and the reference (to look it up).