Added permissions change for merged.mg files in upgrade

[mjcr99]

Related issue
https://github.com/wazuh/wazuh-jenkins/issues/5929

Description

This PR fixes a permissions discordance in the merged.mg files, when updating a manager using packages update. After this change, the merged.mg files will be set to 644 permissions.

Logs example

Ubuntu22

root@server-slave-ubu22:/home/vagrant# curl -sO https://packages.wazuh.com/4.x/apt/pool/main/w/wazuh-manager/wazuh-manager_4.5.4-1_amd64.deb

root@server-slave-ubu22:/home/vagrant# dpkg -i wazuh-manager_4.5.4-1_amd64.deb 
Selecting previously unselected package wazuh-manager.
(Reading database ... 71284 files and directories currently installed.)
Preparing to unpack wazuh-manager_4.5.4-1_amd64.deb ...
Unpacking wazuh-manager (4.5.4-1) ...
Setting up wazuh-manager (4.5.4-1) ...

root@server-slave-ubu22:/home/vagrant# /var/ossec/bin/wazuh-control start
Starting Wazuh v4.5.4...
Started wazuh-apid...
Started wazuh-csyslogd...
Started wazuh-dbd...
2023/11/17 10:57:11 wazuh-integratord: INFO: Remote integrations not configured. Clean exit.
Started wazuh-integratord...
Started wazuh-agentlessd...
Started wazuh-authd...
Started wazuh-db...
Started wazuh-execd...
Started wazuh-analysisd...
Started wazuh-syscheckd...
Started wazuh-remoted...
Started wazuh-logcollector...
Started wazuh-monitord...
Started wazuh-modulesd...
Completed.

root@server-slave-ubu22:/home/vagrant# ls -la /var/ossec/etc/shared/default/merged.mg 
-rw-rw---- 1 wazuh wazuh 899315 Nov 17 10:57 /var/ossec/etc/shared/default/merged.mg

root@server-slave-ubu22:/home/vagrant# curl -sO https://packages-dev.wazuh.com/warehouse/test/4.7/deb/var/wazuh-manager_4.7.0-1_amd64.deb

root@server-slave-ubu22:/home/vagrant# dpkg -i wazuh-manager_4.7.0-1_amd64.deb 
(Reading database ... 92559 files and directories currently installed.)
Preparing to unpack wazuh-manager_4.7.0-1_amd64.deb ...
Unpacking wazuh-manager (4.7.0-1) over (4.5.4-1) ...
Setting up wazuh-manager (4.7.0-1) ...

root@server-slave-ubu22:/home/vagrant# ls -la /var/ossec/etc/shared/default/merged.mg 
-rw-r--r-- 1 wazuh wazuh 899315 Nov 17 10:57 /var/ossec/etc/shared/default/merged.mg

Centos7

[root@agent1-centos7 vagrant]# curl -sO https://packages.wazuh.com/4.x/yum/wazuh-manager-4.5.4-1.x86_64.rpm

[root@agent1-centos7 vagrant]# rpm -i wazuh-manager-4.5.4-1.x86_64.rpm 
advertencia:wazuh-manager-4.5.4-1.x86_64.rpm: EncabezadoV3 RSA/SHA256 Signature, ID de clave 29111145: NOKEY

[root@agent1-centos7 vagrant]# /var/ossec/bin/wazuh-control start
Starting Wazuh v4.5.4...
Started wazuh-apid...
Started wazuh-csyslogd...
Started wazuh-dbd...
2023/11/17 10:58:00 wazuh-integratord: INFO: Remote integrations not configured. Clean exit.
Started wazuh-integratord...
Started wazuh-agentlessd...
Started wazuh-authd...
Started wazuh-db...
Started wazuh-execd...
Started wazuh-analysisd...
Started wazuh-syscheckd...
Started wazuh-remoted...
Started wazuh-logcollector...
Started wazuh-monitord...
Started wazuh-modulesd...
Completed.

[root@agent1-centos7 vagrant]# ls -la /var/ossec/etc/shared/default/merged.mg 
-rw-rw----. 1 wazuh wazuh 899315 nov 17 10:58 /var/ossec/etc/shared/default/merged.mg

[root@agent1-centos7 vagrant]# curl -sO https://packages-dev.wazuh.com/warehouse/test/4.7/rpm/var/wazuh-manager-4.7.0-1.x86_64.rpm

[root@agent1-centos7 vagrant]# rpm -U wazuh-manager-4.7.0-1.x86_64.rpm 
advertencia:/var/ossec/etc/ossec.conf creado como /var/ossec/etc/ossec.conf.rpmnew

[root@agent1-centos7 vagrant]# ls -la /var/ossec/etc/shared/default/merged.mg 
-rw-r--r--. 1 wazuh wazuh 899315 nov 17 10:58 /var/ossec/etc/shared/default/merged.mg

Tests

• Tests for Linux RPM
  • Build the package for x86_64
• Tests for Linux deb
  • Build the package for x86_64