feat(service): Add Uptime Kuma with MariaDB support service template.

[piscis]

Changes

• Adds support for Uptime Kuma v2 + Maria DB 11.8 (LTS)
• Adds a custom MariaDB config with some default tweeks to run a deployment on small host with 1.5 GB
• Gives the user the ability to run Kuma beside a Maria DB container. Kuma now has support for RDBM`s since v2 release

Issues

Not real issues but thinks to consider:

• I decided not to generate a db-config.json via Docker Compose. Users must deploy the service first and then configure it through the web interface. This might be worth adding to the documentation.
• Although Uptime Kuma v2 supports an internal MariaDB instance, I chose to use an external container so users can leverage Coolify’s built-in backup functionality for the database.
• I’m unsure whether we should provide a default custom MariaDB configuration. I kept the settings and tweaks to a bare minimum for now.

[ShadowArcanist]

Holding this due to https://github.com/louislam/uptime-kuma/wiki/Migration-From-v1-To-v2#docker-only-breaking-changes

Will circle back to this PR once moby/moby#40734 is closed

[github-actions]

Hi @piscis! 👋

It appears to us that you are either adding a new service or making changes to an existing one.
We kindly ask you to also review and update the Coolify Documentation to include this new service or it's new configuration needs.
This will help ensure that our documentation remains accurate and up-to-date for all users.

Coolify Docs Repository: https://github.com/coollabsio/coolify-docs
How to Contribute a new Service to the Docs: https://coolify.io/docs/get-started/contribute/service#adding-a-new-service-template-to-the-coolify-documentation