CLEANSTART-2026-WD74020 Security fixes in keycloak 26.6.4-r1

Package keycloak version 26.6.4-r1 fixes 14 vulnerabilities: ghsa-rmj7-2vxq-3g9f, ghsa-j3rv-43j4-c7qm, ghsa-9fxm-vc8v-hj55, ghsa-5hh8-q8hv-fr38, ghsa-rcqc-6cw3-h962...