Change macOS install script

[asteriscos]

Description

This pull request adds sudo to macOS agent install script and changes the environment variables set.

Issues Resolved

Closes #1406

Evidence

Test

• Go to the agent section
• Press Add new agent
• Select macOS
• Fill the manager address
• Verify the script is like:

curl -so wazuh-agent.pkg https://packages.wazuh.com/4.x/osx/wazuh-agent-4.4.2-1.pkg && sudo echo "WAZUH_MANAGER='192.168.0.1'" > /tmp/wazuh_envs && sudo installer -pkg ./wazuh-agent.pkg -target /

Check List

• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff