Pass --debug to phpunit

Author: nikic

azure/community_job.yml

@@ -55,7 +55,7 @@ jobs:
         php7.3 /usr/bin/composer install --no-progress
         export USE_ZEND_ALLOC=0
         export ASAN_OPTIONS=exitcode=139
-        php vendor/bin/phpunit
+        php vendor/bin/phpunit --debug
         if [ $? -gt 128 ]; then
           exit 1
         fi