keycloak: update quay.io/keycloak/keycloak Docker tag to v26.3.3

Author: renovate[bot]

keycloak/kustomization.yaml

@@ -22,4 +22,4 @@ generators:
   - secret-generator.yaml
 images:
   - name: quay.io/keycloak/keycloak
-    newTag: 26.3.2@sha256:98fab020a3a490aba0978f237e2a06cd0ea42bf149c6cf10f11c0aaf27728ff2
+    newTag: 26.3.3@sha256:6a7217a100bd3e5de4063a27a538ef999a3c5a88c4b4ec0ffc0a642aee7b2597