chore(dns): Switch to current stable release v0.23

The unstable main builds were used to the requirement for an unreleased
fix. This switches now back to a stable release in order to keep
stability long term.

apps/k8s01/dns/dns.yaml

@@ -51,7 +51,7 @@ spec:
     spec:
       containers:
         - name: blocky
-          image: ghcr.io/0xerr0r/blocky:main@sha256:5835ff7feb93fc8b5484125f9c1c4b82546f626b09773bebfd839ded691e2912
+          image: ghcr.io/0xerr0r/blocky:v0.23
           args:
             - --config
             - /etc/blocky/config.yaml