Ejabberd download link update

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Description

Updated the download link for ejabberd 23.04 used in osp-configh.sh to a working link.

Motivation and Context

The old link (https://www.process-one.net/downloads/downloads-action.php?file=/23.04/ejabberd-23.04-1-linux-x64.run) is 404ing now.

How Has This Been Tested?

Updated with a link to their github release pages: https://github.com/processone/ejabberd/releases/download/23.04/ejabberd-23.04-1-linux-x64.run

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• Merge Request Follows the Merge Request Guidelines
• My change requires a change to the documentation.
• I have updated the documentation accordingly.