[TASK] Update Fluid engine dependency to 2.2.0

This raises the required and locked version of Fluid
to 2.2.0. The dependency is also bumped in the
composer manifest to ensure that the new VH
`f:variable` can be trusted to exist.

The Fluid engine patches are as follows:

* [FEATURE] Add variable assigning ViewHelper
* [BUGFIX] Cache did not lfush when compiler disabled
* [BUGFIX] Allow renderSection() to be called directly
* [BUGFIX] Convert bool arguments into BooleanNodes
* [BUGFIX] Disable variable extractors

Change-Id: I4ca2ef35b1f82952ca6ef1932d5b2a7a764ff526
Releases: master
Resolves: #79402
Resolves: #79375
Resolves: #77986
Reviewed-on: https://review.typo3.org/51375


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Philipp Gampe <philipp.gampe@typo3.org>
Tested-by: Philipp Gampe <philipp.gampe@typo3.org>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>