Add custom path for indexer packages to 4.4

[c-bordon]

Related issue

Description

I add the configuration of the generate_base.sh and build_package.sh scripts of indexer so that it accepts the possibility of saving the built packages in a custom path, in the same way, that it is done in the dashboard scripts:

ls -la /tmp | grep wazuh*
-rw-r--r--  1 root    root    356166794 jun 28 08:38 wazuh-indexer_4.3.5-1_amd64.deb
-rw-r--r--  1 root    root          162 jun 28 08:38 wazuh-indexer_4.3.5-1_amd64.deb.sha512
-rw-r--r--  1 root    root    378831260 jun 28 08:33 wazuh-indexer-4.3.5-1.x86_64.rpm
-rw-r--r--  1 root    root          163 jun 28 08:33 wazuh-indexer-4.3.5-1.x86_64.rpm.sha512
-rw-r--r--  1 root    root    357530656 jun 28 08:30 wazuh-indexer-base-4.3.5-1-linux-x64.tar.xz