Bump Keycloak to 26.5.7

Author: jb3

kubernetes/namespaces/tooling/keycloak/deployment.yaml

@@ -18,7 +18,7 @@ spec:
       serviceAccountName: internal-tls-issuer
       containers:
         - name: keycloak
-          image: ghcr.io/owl-corp/keycloak:26.5.4
+          image: ghcr.io/owl-corp/keycloak:26.5.7
           imagePullPolicy: Always
           envFrom:
             - secretRef: