[TASK] Cleanup .gitignore components directory

The components/ directory has been a temporary directory in v8 phase,
does not exist anymore and can be removed from .gitignore.

Change-Id: I0f690c8fb38733dc8d168a7e43078dffc60450ea
Resolves: #81286
Releases: master, 8.7
Reviewed-on: https://review.typo3.org/52881


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>