Update alpine Docker tag to v3.17

See merge request !71

This reverts merge request !68

Update dependency gcr.io/kaniko-project/executor to v1.8.1

See merge request !68

Configure Renovate

See merge request !62

keep some more /usr/share/X11/locale files

See merge request !63

Do not pass a keyring name to pacman-key

See merge request !65

If the keyring is not specified, pacman-key will simply use all keyrings from /usr/share/pacman/keyrings/.

Use C.UTF-8

See merge request !64

The glibc 2.35-6 package ships with the C.UTF-8 locale included.
This means there is now a UTF-8 locale available by default and en_US.UTF-8, which requires editing /etc/locale.gen and running locale-gen, is not needed anymore.

Resolves #68

Resolves https://github.com/docker-library/official-images/pull/12535#issuecomment-1142701007

Replace xz with zstd

Closes #63

See merge request !61

Closes #63.

Using `zstd -T0 -8` instead of `gz -T0 -9` results in a larger rootfs
file, but requires significantly less time and memory:

```

zstd  -3 115M   1.60user 0.18system 0:00.32elapsed 557%CPU (0avgtext+0avgdata  130212maxresident)k
zstd  -6 107M   5.03user 0.24system 0:00.72elapsed 729%CPU (0avgtext+0avgdata  149660maxresident)k
zstd  -7 106M   7.33user 0.29system 0:01.04elapsed 728%CPU (0avgtext+0avgdata  174368maxresident)k
zstd  -8 105M   8.45user 0.27system 0:01.23elapsed 707%CPU (0avgtext+0avgdata  173008maxresident)k
zstd  -9 104M   9.35user 0.37system 0:01.42elapsed 683%CPU (0avgtext+0avgdata  335920maxresident)k
zstd -13 104M  30.57user 0.31system 0:04.76elapsed 648%CPU (0avgtext+0avgdata  498740maxresident)k
zstd -19  91M 132.06user 0.53system 0:21.98elapsed 603%CPU (0avgtext+0avgdata 1106328maxresident)k
xz    -9  81M 105.71user 0.58system 0:58.24elapsed 182%CPU (0avgtext+0avgdata 2006964maxresident)k
```

Additionally this drops bash from the build Dockerfile, since `SHELL` is
not OCI compliant.

Allows 'make image-base DOCKER=podman'

Originally from: Grzegorz Klimaszewski <2612193+grzegorzk@users.noreply.github.com>
https://github.com/archlinux/archlinux-docker/pull/38/files

Closes #51.

Switch to GeoIP mirror

See merge request archlinux/archlinux-docker!60

Currently consists of 3 geographically diverse boxes which are managed
by DevOps. (See commit 9f65f99c6b2330e7e2fbceb988115c5cc65db09f in the
archlinux/infrastructure project.)

See 52729f99

Not used, copied from devtools since 2cbbe5a7.

Resolves #58.

As suggested by @klausenbusk, this ensures that the releases are created
by the project bot/user instead of the schedule-owner.

Avoid curl call on local builds

See merge request !59

It is incompatible with -J and done automatically. See [1].

[1] https://gitlab.archlinux.org/archlinux/archlinux-docker/-/jobs/34434#L72

This reverts commit 1d15a041.

It is incompatible with --continue-at. See [1].

[1] https://gitlab.archlinux.org/archlinux/archlinux-docker/-/jobs/34434#L72

As suggested by xatier on GitHub:
* https://github.com/archlinux/archlinux-docker/pull/41
* https://github.com/archlinux/archlinux-docker/pull/42/files

README: add note on lsign-key

Closes #18

See merge request !58

Revert after [0] is fixed

[0] https://github.com/GoogleContainerTools/kaniko/issues/1592

Remove the rootfses from the package registry after 60 days

Closes #57

See merge request !57

According to upstream two months is fine:
tianon: yeah, cleaning them out is reasonable, although I'd request that
they be available for something like 1-2 months after they're no longer
supported / "active"
tianon: in the case of something constantly changing like arch, 1 month
is probably pretty reasonable

Fix #57

Add the $maintainers to the PR's body instead of the commit

See merge request !56