Upgrade Java 8 version in CI image

Closes gh-21084

Author: snicoll

ci/images/get-jdk-url.sh

@@ -3,7 +3,7 @@ set -e
 
 case "$1" in
 	java8)
-		 echo "https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u242-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u242b08.tar.gz"
+		 echo "https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u252-b09/OpenJDK8U-jdk_x64_linux_hotspot_8u252b09.tar.gz"
 	;;
 	java11)
 		 echo "https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.7%2B10/OpenJDK11U-jdk_x64_linux_hotspot_11.0.7_10.tar.gz"