feat: handle PAM password policy changes

scripts/test-system-e2e.sh

@@ -54,6 +54,11 @@ if need_command ldconfig && ldconfig -p 2>/dev/null | grep -q 'libpam\.so'; then
 else
     skip "PAM runtime library is unavailable"
 fi
+if [ -n "$binary" ] && need_command nm && nm -D "$binary" 2>/dev/null | grep -q 'pam_chauthtok'; then
+    pass "PAM password-change entry point is linked"
+else
+    skip "PAM password-change entry point could not be inspected"
+fi
 if [ -r /etc/pam.d/latchd ]; then
     pass "latchd PAM policy is installed"
 else