Add bookworm images for php >= 81 images and make them the default ones

[stronk7]

Our upstream images (docker "official" ones) only support 2 debian versions for PHP version.

Recently, for php >= 81, they stopped building Debian buster images and started with Debian bookworm instead (see docker-library/php#1416). So current images look as follow:

• ph82: https://hub.docker.com/_/php/tags?page=1&name=8.2-apache (bullseye and bookworm default).
• php81: https://hub.docker.com/_/php/tags?page=1&name=8.1-apache (bullseye and bookworm default).
• php80: https://hub.docker.com/_/php/tags?page=1&name=8.0-apache (buster and bullseye default).

So we need to:

• Create bookworm variants for 8.1, 8.2 and dev.
• Verify they work ok.
• Make them the default ones for those branches (currently default is bullseye).

Ciao :-)

[stronk7]

Done, now the 8.1-bookworm and 8.2-bookworm tags are available @ moodle-php-apache. Also, the current dev tag (8.3beta2 right now) is built with "bookworm" (Debian 12).

Next step, put some jobs to work using those "bookworm" images before making them the default.

Ciao :-)

[stronk7]

Ok, all these jobs:

• DEV.82 - PHP 8.2 (running 8.2-bookworm instead of 8.2).
• DEV.83 - PHP 8.3 (running dev that is, right now, already "bookworm").
• TR - Bulk pre-launch DEV jobs (awaiting integration) (402 and master jobs running 8.1-bookworm instead of 8.0).

Once we verify that all them are consistently passing and we make the "bookworm" the default ones, we'll need to undo the configuration changes in the jobs above.

Ciao :-)

[stronk7]

We have had the new images running over the last days (in the jobs commented above) and everything seems to be working ok with them.

So, tomorrow (17th August 2023), we'll proceed to make them the default ones for php>= 81. And buster ones will be deprecated / EOLed.

Ciao :-)