Bumped Brics version to 1.11.8

Motivation behind the bump is the following Gerrit targeted
Brics patch, which was included in the 1.11.8 release:
https://github.com/GLundh/dk.brics.automaton/commit/75175c3

This Brics version fixes a performance issue in some larger
Gerrit systems.

Change-Id: I53637988fbe1769d2d18860b7ebe70f70781786c
1 file changed