apps: cluster1: guix: maintenance-nix-build-container-systemd-kube1: Update to b356489.

Author: wigust

apps/cluster1/maintenance-nix-build-container-systemd-kube1/job.yaml

@@ -6,7 +6,7 @@ spec:
   template:
     metadata:
       annotations:
-        guix-default-channel-commit: 1ed2140a
+        guix-default-channel-commit: b3564896
     spec:
       nodeSelector:
         kubernetes.io/hostname: kube1