Merge branch 'debian-gcc-first-time-timeout' into 'master'

Fix Debian GCC timeout on forks

See merge request OpenMW/openmw!416

.gitlab-ci.yml

@@ -37,6 +37,8 @@ Debian_GCC:
     CC: gcc
     CXX: g++
     CCACHE_SIZE: 3G
+  # When CCache doesn't exist (e.g. first build on a fork), build takes more than 1h, which is the default for forks.
+  timeout: 2h
 
 Debian_GCC_tests:
   extends: .Debian