Add new Media Analytics field group to Adobe Analytics ExperienceEvent Template

## What are the schemas that are affected by the issue

* analytics-experienceevent.schema.json

## What are examples of products that are impacted by the issue

* Analytics Data Connector
* Adobe Media Analytics

Internal Jira issue: https://jira.corp.adobe.com/browse/AN-362660

## Context
* Adobe Analytics ExperienceEvent Template only contains the deprecated Media Analytics field group.
* Analytics Data Connector, which uses the above-mentioned template will map Media Analytics data to the new format, namely the MediaAnalytics Interaction Details field group.

## Changes
* MediaAnalytics field group should be added to the Adobe Analytics ExperienceEvent Template, such that the mappings will be possible

Open analytics-experienceevent.schema.json and inspect how the existing deprecated Media Analytics field group is represented. Compare the template’s current field-group references with the MediaAnalytics Interaction Details field group described in the issue, then verify that the new mappings can be represented in the template.

Written by the indexing model from the issue text.