Fix CI curl calls

Fix `curl` to follow redirects and use the correct `strip` variable.

See gh-15158

Author: philwebb

ci/images/setup.sh

@@ -39,7 +39,7 @@ case "$1" in
 esac
 mkdir -p /opt/openjdk
 cd /opt/openjdk
-curl ${JDK_URL} | tar zx --strip-components={JDK_STRIP}
+curl -L ${JDK_URL} | tar zx --strip-components=${JDK_STRIP}
 
 
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