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>