[TASK] Update `autosize` to 6.x

The JavaScript module `autosize` used to automatically change a textarea
size is updated to version 6.0. This version brings ECMAScript modules,
therefore the build chain is adapted.

Resolves: #99981
Releases: main
Change-Id: I88c1fff83b9e4fb11be8cbef55711433d4701451
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77888


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>