fix: Upstream broke aarch64 builds

A "bug fix" makes the build stop. We could probably just patch it out
but if this is known to be broken then lets just stay on ga till an
update is actually needed.

openjdk/jdk8u@ffdc8d8
https://mail.openjdk.org/pipermail/jdk8u-dev/2026-January/020987.html

Author: alexytomi

clonejdk.sh

@@ -2,6 +2,9 @@
 set -e
 if [[ "$TARGET_JDK" == "arm" ]]; then
 git clone --depth 1 https://github.com/openjdk/aarch32-port-jdk8u openjdk
+elif [[ "$TARGET_JDK" == "arm64" ]]; then
+  # See https://github.com/openjdk/jdk8u/commit/ffdc8d8946c307a2ce911b2e6f6fa654c71d81b6 as to how they broke newer versions for aarch64.
+git clone --depth 1 https://github.com/openjdk/jdk8u --branch jdk8u482-ga openjdk
 elif [[ "$BUILD_IOS" == "1" ]]; then
 git clone --depth 1 https://github.com/corretto/corretto-8 openjdk
 else