Upgrade Elasticsearch version to 8.5.3

What does this merge request do and why?

Related: gitlab-org/search-team/team-tasks#109 (closed)

Upgrade Elasticsearch to 8.5.3

I was in the middle of upgrading our production cluster to 8.5.2 when the version available for upgrade in ElasticCloud was changed to 8.5.3. So we need to do all of the prep work steps again

How to set up and validate locally

1. make sure elasticsearch is enabled in gdk.yml
2. run make elasticsearch-setup
3. verify that the elasticsearch version is updated

Impacted categories

The following categories relate to this merge request:

• gdk-reliability - e.g. When a GDK action fails to complete.
• gdk-usability - e.g. Improvements or suggestions around how the GDK functions.
• gdk-performance - e.g. When a GDK action is slow or times out.

Merge request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise an issue to follow-up.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.