Handle removal of free tagged releases for Bitnami's MariaDB Helm chart
[We can no longer depend on free tagged releases for Drupal's MariaDB database](https://artifacthub.io/packages/helm/bitnami/mariadb#-important-notice-upcoming-changes-to-the-bitnami-catalog):
> Bitnami will begin deprecating support for non-hardened, Debian-based software images in its free tier and will gradually remove non-latest tags from the public catalog. As a result, community users will have access to a reduced number of hardened images. These images are published only under the “latest” tag and are intended for development purposes
See [Upcoming changes to the Bitnami catalog (effective August 28th, 2025) #83267](https://github.com/bitnami/containers/issues/83267) for details.
Can we find another another Helm chart for the DB we can use instead?
### Remaining tasks for the project
1. [x] Find replacement
2. [x] Implement it
3. [x] Test on BackUpScale Staging environment
4. [x] Merge MR
5. [x] Tag release `2.0.0`
6. [x] Add release notes (see below)
### Remaining tasks for BackUpScale
1. [x] Tag `master` branch with updated submodule
3. [x] Push it
5. [x] Deploy to Prod
6. [x] Delete old PVCs
issue