CI: use address sanitizer without leak checks

Use address sanitizer to catch use-after-free and other errors when
running the test suite.

Leak detection is disabled, because currently there are too many leaks,
making almost all tests fail otherwise.

The atexit=1 is for verifying that ASan was actually used.

The default 128 MB of RAM in the qemu machine leads to oom-killer
killing most tests, so bump the memory size to 1 GB.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>

.gitlab-ci/virtme-scripts/run-weston-tests.sh

@@ -21,7 +21,7 @@ export HOME=/root
 while ! [ -e /run/seatd.sock ]; do sleep 0.1; done
 
 # run the tests and save the exit status
-ninja test
+ASAN_OPTIONS=detect_leaks=0,atexit=1 ninja test
 TEST_RES=$?
 
 # create a file to keep the result of this script: