CLSA-2026-1770310264 java-1.8.0-openjdk: Fix of 3 CVEs

Upgrade to shenandoah-jdk8u482-b08 GA fixing the following CVE: - CVE-2026-21945: enhance certificate checking - CVE-2026-21925: improve JMX connections - CVE-2026-21933: improve HttpServer request handling...