Fix JDK 8 URL in CI image setup

Author: bclozel

ci/images/get-jdk-url.sh

@@ -3,7 +3,7 @@ set -e
 
 case "$1" in
   java8)
-    echo "https://github.com/bell-sw/Liberica/releases/download/8u333%2B2/bellsoft-jre8u333+2-linux-amd64.tar.gz"
+    echo "https://github.com/bell-sw/Liberica/releases/download/8u333+2/bellsoft-jdk8u333+2-linux-amd64.tar.gz"
   ;;
   java11)
     echo "https://github.com/bell-sw/Liberica/releases/download/11.0.15.1+2/bellsoft-jdk11.0.15.1+2-linux-amd64.tar.gz"