Add all Adelie Linux architectures

[Gorggg]

As all packages are not necessarily in all architectures, this fetches the package index for each supported architecture and adds the data to the corresponding subrepo. This addresses a comment that was previously present in the yaml file.

I apologize for anything I did wrong or misinterpreted, and would greatly appreciate any suggestions for improvement.

[AMDmi3]

For the record, here's the current diff between adelie arches:

      effname       |  aarch64   |  armv7  |         pmmx         |    ppc     |   ppc64    |        x86_64        
--------------------+------------+---------+----------------------+------------+------------+----------------------
 ant                | 1.10.8     |         | 1.10.8               | 1.10.8     | 1.10.8     | 1.10.8
 davmail            | 5.5.1.3299 |         | 5.5.1.3299           | 5.5.1.3299 | 5.5.1.3299 | 5.5.1.3299
 efibootmgr         | 18         | 18      | 18                   |            |            | 18
 efivar             | 38         | 38      | 38                   |            |            | 38
 firefox            | 91.13.0    | 91.13.0 | 91.13.0              |            | 91.13.0    | 91.13.0
 gitlab-runner      | 12.1.0     | 12.1.0  | 12.1.0               |            | 12.1.0     | 12.1.0
 gleam              | 0.22.1     | 0.22.1  | 0.22.1               |            |            | 0.22.1
 icewm              | 3.5.0      | 3.5.0   | 3.4.5                | 3.5.0      | 3.5.0      | 3.5.0
 lilo               |            |         | 24.2                 |            |            | 24.2
 mac-fdisk          |            | 0.1.16  | 0.1.16               | 0.1.16     | 0.1.16     | 0.1.16
 nodejs             | 18.15.0    | 18.15.0 | 18.15.0              |            | 18.15.0    | 18.15.0
 numactl            | 2.0.15     |         | 2.0.15               | 2.0.15     | 2.0.15     | 2.0.15
 opal-utils         |            |         |                      |            | 6.6.2      | 
 open-vm-tools      | 12.4.0     |         | 12.4.0               |            |            | 12.4.0
 openjdk            | 8.312.07   |         | 8.312.07             | 8.312.07   | 8.312.07   | 8.312.07
 powerpc-utils      |            |         |                      | 1.3.7      | 1.3.7      | 
 thunderbird        | 91.13.0    | 91.13.0 | 91.13.0              |            | 91.13.0    | 91.13.0
 wine               |            |         | 8.1                  |            |            | 8.1
 xdrv:freedreno     | 1.4.0      | 1.4.0   |                      |            |            | 
 xdrv:geode         |            |         | 2.11.19              |            |            | 
 xdrv:intel         |            |         | 2.99.917_git20200224 |            |            | 2.99.917_git20200224
 xdrv:siliconmotion |            |         | 1.7.9                | 1.7.9      | 1.7.9      | 1.7.9
 xdrv:vmware        |            |         | 13.3.0               | 13.3.0     | 13.3.0     | 13.3.0
 xmlsec             | 1.3.4      | 1.3.4   | 1.3.3                | 1.3.4      | 1.3.4      | 1.3.4

Though the change is technically valid, duplicate packages would currently have negative impact on site UX and performance, so I'd like to postpone this. We may consider switching to x86_64 for the time being, being the most common arch.