Revert bind-operator to v0.2.4 (v0.2.5 rolling-restart loop) (#291)

v0.2.5 renders the primary POD IP into the options-scope allow-notify. Options changes are restart-scoped (config-hash annotation), and every roll gives the primary a new pod IP, so the operator re-renders and rolls all bind clusters in an endless loop (externaldns, authoritative, resolvers all cycling ~45s pods right now).

- Reverts the operator image and CRD pin to v0.2.4

A v0.2.6 will re-do the NOTIFY fix loop-free (allow-notify via zone-scope/rndc-applied config or a TSIG-keyed notify instead of pod-IP-in-options). MERGE ASAP to stabilize DNS.

Reviewed-on: #291
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

apps/base/bind-system/deployment.yaml

@@ -21,7 +21,7 @@ spec:
         runAsNonRoot: true
       containers:
         - name: operator
-          image: git.unkin.net/unkin/bind-operator:v0.2.5
+          image: git.unkin.net/unkin/bind-operator:v0.2.4
           args:
             - --metrics-bind-address=:8080
             - --health-probe-bind-address=:8081