[BUGFIX] Skip APC test on php 5.3

travis suddenly shows a failed APC test on PHP 5.3. We have had issue
with the stability of APC tests before, there are some race
conditions in APC. For now we just skip the failing test on PHP 5.3

Resolves: #49682
Releases: 6.2

Change-Id: If52b3a823589d6dc83b52323b8ae57a0227571c9
Reviewed-on: https://review.typo3.org/21913
Reviewed-by: Steffen Ritter
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters