Revert "Temporarily disable CI on archlinux"

This reverts commit f0d4263.

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

.github/workflows/test.yml

@@ -213,7 +213,7 @@ jobs:
         - alpine.yaml
         - debian.yaml
         - fedora.yaml
-        # - archlinux.yaml temporarily disabled because it breaks CI
+        - archlinux.yaml
         - opensuse.yaml
         - experimental/net-user-v2.yaml
         - experimental/9p.yaml