Docker: Change MariaDB version to LTS

[TimBroddin]

Proposed changes:

I ran into an issue where running jetpack docker up failed to start MariaDB, because the mysqld binary was not available in the container image.

It seems like MariaDB decided to sunset the mysql/mysqld commands in favor of mariadbd/mariadb commands, but didn't update the Docker image to reflect this.

This PR updates the version used from latest to lts.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
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Jetpack product discussion

p1686562119649609-slack-C0299DMPG

Does this pull request change what data or activity we track or use?

No

Testing instructions:

1. Checkout this branch
2. Run jetpack docker up

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