Fix shebangs

Author: jan-cerny

linux_os/guide/system/accounts/accounts-pam/locking_out_password_attempts/accounts_passwords_pam_faillock_unlock_time_with_zero/tests/correct.pass.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/bash
 # variables = var_accounts_passwords_pam_faillock_unlock_time=900
 echo "unlock_time = 900" > "{{{ pam_faillock_conf_path }}}"
 authselect enable-feature with-faillock

linux_os/guide/system/accounts/accounts-pam/locking_out_password_attempts/accounts_passwords_pam_faillock_unlock_time_with_zero/tests/high.pass.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/bash
 # variables = var_accounts_passwords_pam_faillock_unlock_time=900
 echo "unlock_time = 1000" > "{{{ pam_faillock_conf_path }}}"
 authselect enable-feature with-faillock

linux_os/guide/system/accounts/accounts-pam/locking_out_password_attempts/accounts_passwords_pam_faillock_unlock_time_with_zero/tests/zero.pass.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/bash
 echo "unlock_time = 0" > "{{{ pam_faillock_conf_path }}}"
 authselect enable-feature with-faillock
 authselect apply-changes