[TASK] Add spaces around '=' of 'strict_types=1'

This cosmetical CGL change just substitutes all

declare(strict_types=1);
with
declare(strict_types = 1);

to be in line with the general 'spaces around ='
rule. While that is cosmetical, it makes scrutinizer-ci
a bit more happy and prevents it from creating
auto-patches for these cases.

Change-Id: Ic754b3fd2a0f06624909e6188ed270bd2797745c
Resolves: #83554
Releases: master
Reviewed-on: https://review.typo3.org/55349


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: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>