Revert "Revert "ci: Add workaround for Archlinux/Docker issue""

This reverts commit 8fccc17bd8.
Still broken unfortunately (probably on GitHub's side)...

scripts/dev/ci/docker/Dockerfile.j2

@@ -1,5 +1,12 @@
 FROM archlinux:latest
 
+# WORKAROUND for glibc 2.33 and old Docker
+# See https://github.com/actions/virtual-environments/issues/2658
+# Thanks to https://github.com/lxqt/lxqt-panel/pull/1562
+RUN patched_glibc=glibc-linux4-2.33-4-x86_64.pkg.tar.zst && \
+    curl -LO "https://repo.archlinuxcn.org/x86_64/$patched_glibc" && \
+    bsdtar -C / -xvf "$patched_glibc"
+
 {% if unstable %}
 RUN sed -i '/^# after the header/a[kde-unstable]\nInclude = /etc/pacman.d/mirrorlist\n\n[testing]\nInclude = /etc/pacman.d/mirrorlist' /etc/pacman.conf
 {% endif %}