Print getHelp output when no parameter is passed to the builder script

[CarlosALgit]

Related issue:

• Add parameters validation to builder.sh script #24

Description

The aim of this PR is to run the getHelp and show the usage options of the builder.sh script.

Tests

I peformed a test and run the builder.sh script with no parameters:

root@ubuntu-jammy:/home/vagrant/wazuh-installation-assistant# ./builder.sh 

NAME
        builder.sh - Builds the Wazuh installation assistant and tools.

SYNOPSIS
        builder.sh [-v] -i | -c | -p

DESCRIPTION
        -i,  --installer
                Builds the unattended installer single file wazuh-install.sh

        -c,  --cert-tool
                Builds the certificate creation tool wazuh-cert-tool.sh

        -p,  --password-tool
                Builds the password creation and modification tool wazuh-password-tool.sh

        -h,  --help
                Shows help.