Request releases create a videx-server RPM package

### Feature Description and Motivation

To make it easier to install the videx-server, it would be easy if this was a arch agnostic RPM.

It should package quite easy up as a RPM spec file, a few python macros for install, and perhaps a systemd service/socket file. This could be automated as a github action.

With this created, installation becomes `dnf localinstall {url to release RPM}`.

ref: https://jira.mariadb.org/browse/MDEV-38409

### System Version

_No response_

### Use Case Scenario

installing VIDEX-server where you've already got a MariaDB with videx plugin installed, and need a server instance.

### Proposed Implementation (Optional)

_No response_

Start by locating how videx-server is installed and how releases are produced. Define the RPM contents from the requested Python macros, RPM spec, and optional systemd service/socket, then verify that the resulting package supports installation with dnf localinstall and can be built or published through a GitHub Action.

Written by the indexing model from the issue text.