Bump kea images to v0.1.2 (socket dir 0750 fix)

kea-operator v0.1.2 renders entrypoints that chmod /var/run/kea to 0750,
resolving the remaining CrashLoopBackOff where kea rejected the 0777
emptyDir socket directory ("more relaxed permissions than 750").

- Bump kea-operator, kea, and kea-api images v0.1.1 -> v0.1.2.

Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT

apps/base/dhcp-system/cr/keaapi.yaml

@@ -11,7 +11,7 @@ metadata:
     argocd.argoproj.io/sync-wave: "1"
 spec:
   replicas: 1
-  image: git.unkin.net/unkin/kea-api:v0.1.1
+  image: git.unkin.net/unkin/kea-api:v0.1.2
   tokenSecretName: kea-api-token
   service:
     type: ClusterIP

apps/base/dhcp-system/cr/keacluster.yaml

@@ -11,7 +11,7 @@ metadata:
     argocd.argoproj.io/sync-wave: "1"
 spec:
   replicas: 2
-  image: git.unkin.net/unkin/kea:v0.1.1
+  image: git.unkin.net/unkin/kea:v0.1.2
   domainName: main.unkin.net
   defaultLeaseTime: 1200
   maxLeaseTime: 86400

apps/base/dhcp-system/deployment.yaml

@@ -21,7 +21,7 @@ spec:
         runAsNonRoot: true
       containers:
         - name: operator
-          image: git.unkin.net/unkin/kea-operator:v0.1.1
+          image: git.unkin.net/unkin/kea-operator:v0.1.2
           args:
             - --metrics-bind-address=:8080
             - --health-probe-bind-address=:8081