test: always wrap useradd/userdel when running w/ ASan

since they dlopen() PAM modules, including systemd ones.

test/test-functions

@@ -2484,9 +2484,9 @@ inst_binary() {
 
     # Same as above, but we need to wrap certain libraries unconditionally
     #
-    # login - dlopen()s (not only) systemd's PAM modules
+    # login, useradd, userdel - dlopen()s (not only) systemd's PAM modules
     # tar - called by machinectl in TEST-25
-    if get_bool "$IS_BUILT_WITH_ASAN" && [[ "$bin" =~ /(login|tar)$ ]]; then
+    if get_bool "$IS_BUILT_WITH_ASAN" && [[ "$bin" =~ /(login|tar|useradd|userdel)$ ]]; then
         wrap_binary=1
     fi