Allow to upgrade packages when allowed by mariadb_upgrade

[elcomtik]

Allow upgrading packages when allowed by mariadb_upgrade

Description

I observed that when I wanted to upgrade from old MariaDB 10.6 to the current default 10.11, not even setting mariadb_upgrade=True was sufficient to upgrade packages when they were already installed on my system.

So I introduced logic, which allows to update packages when the user wants to upgrade.

This is potentionally dangerous and testing is advised for any upgrades on the production database.

Related Issue

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• I have read the CONTRIBUTING document.
• I have run the pre-merge tests locally and they pass.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[elcomtik]

@eRadical can you take a look at code in my PR?

[eRadical]

Can you also add in debian.yml ?

Or maybe take task out of redhat/debian as it is not different!

[elcomtik]

OK, I extracted the package install into its own file and included it in both debian/redhat.