ci: include new files in new directories for pr body (#190)

By default files in new directories are not listed, in favor of just the
directory itself

Author: G-Rath

scripts/list_changed_advisories.py

@@ -7,7 +7,9 @@
 import re
 import subprocess
 
-output = subprocess.check_output(['git', 'status', '--porcelain'], text=True)
+output = subprocess.check_output(
+  ['git', 'status', '--untracked-files', '--porcelain'], text=True
+)
 
 for line in output.split('\n'):
   match = re.match(r'.. advisories/\w+/(DRUPAL-.*)', line)