common: Reconfigured bash in backup scripts

Added options for better error handling

roles/common/files/backup_rename.sh

@@ -1,6 +1,6 @@
-#!/bin/sh
+#!/bin/bash
 
-set -e;
+set -euxo pipefail;
 
 dir=$(dirname "$1");
 date=$(date +%Y-%m-%d-%H-%M);

roles/common/templates/backup_database.sh

@@ -1,6 +1,6 @@
-#!/bin/sh
+#!/bin/bash
 
-set -e;
+set -euxo pipefail;
 
 file={{ backups_databases_directory | quote }}"/$1.sql.gpg";
 

roles/common/templates/backup_files.sh

@@ -1,6 +1,6 @@
-#!/bin/sh
+#!/bin/bash
 
-set -e;
+set -euxo pipefail;
 
 # Arguments
 path="$1";