Run Symfony tests in parallel

Author: nicolas-grekas

azure/community_job.yml

@@ -71,7 +71,7 @@ jobs:
         export USE_ZEND_ALLOC=0
         export USE_TRACKED_ALLOC=1
         export ASAN_OPTIONS=exitcode=139
-        php ./phpunit --exclude-group tty,benchmark,intl-data,transient
+        php ./phpunit src/Symfony --exclude-group tty,benchmark,intl-data,transient
         if [ $? -gt 128 ]; then
           exit 1
         fi