having a custom Golang container

[individual-it]

We have started to add packages to the Golang container in CI (currently using docker.io/golang:1.24)
Examples are:

• inotify-tools
• libvips42
• libvips-dev

Do we want to have a separate container build from docker.io/golang:1.24 and add those things into it?

Disadvantage:

• need to maintain it

Advantage:

• no need to fetch and install the dep on every test run

CC @dragotin @kulmann @micbar @ScharfViktor

[ScharfViktor]

We also need OC_CI_NODEJS with browser dependencies installed.

[ScharfViktor]

@flimmy Fyi

[flimmy]

https://github.com/opencloud-eu/container-ci/

[saw-jan]

Done in opencloud-eu/container-ci#5 and opencloud-eu/opencloud#1955