[tahoe-lafs-trac-stream] [Tahoe-LAFS] #4143: Refresh docker builder images

[Tahoe-LAFS]

#4143: Refresh docker builder images
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     Reporter:  btlogy              |      Owner:  btlogy
         Type:  task                |     Status:  new
     Priority:  normal              |  Milestone:  undecided
    Component:  dev-infrastructure  |    Version:  n/a
   Resolution:                      |   Keywords:
Launchpad Bug:                      |
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Description changed by btlogy:

Old description:

> We have a couple of opened tickets which requires new/updated docker
> images:
>
> - #4131 needs an update of `oraclelinux-8` to phase out python to 3.8
> (EOL)
> - #4137 needs a new `fedora-41` images to phase out `fedora-35` (EOL)
>
> I think it also makes sense to prepare new images to start
> building/testing on:
>
> - `debian-12` before phasing out `debian-11`
> - `ubuntu-24.04` before phasing out `ubuntu-20.04`
> - `oraclelinus-9` before phasing out `oraclelinux-8`
>
> I propose to PR the addition/update of those new images in the `images`
> workflow first, so we can phase the older ones in the `ci` workflow
> later.

New description:

 We have a couple of opened tickets which requires new/updated docker
 images:

 - #4131 needs an update of `oraclelinux-8` to phase out python to 3.8
 (EOL)
 - #4137 needs a new `fedora-41` images to phase out `fedora-35` (EOL)

 I think it also makes sense to prepare new images to start
 building/testing on:

 - `debian-12` before phasing out `debian-11`
 - `ubuntu-24.04` before phasing out `ubuntu-20.04`
 - `oraclelinux-9` before phasing out `oraclelinux-8`

 I propose to PR the addition/update of those new images in the `images`
 workflow first, so we can phase the older ones in the `ci` workflow later.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/4143#comment:2>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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