[TASK] Update to final Lit v2 release

Commands executed:

  cd Build/
  yarn upgrade lit@^2.0.0 lit-html@^2.0.0 lit-element@^3.0.0 @lit/reactive-element@^1.0.0
  grunt rollup

Releases: master
Resolves: #95303
Change-Id: I7e67815cdc0d7e055c6974af4889d51cea76a45d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71168


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>