Upgrade Java 8 version in CI image and .sdkmanrc

Closes gh-32064

Author: snicoll

.sdkmanrc

@@ -1,3 +1,3 @@
 # Enable auto-env through the sdkman_auto_env config
 # Add key=value pairs of SDKs to use below
-java=8.0.342-librca
+java=8.0.345-librca

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/8u342+7/bellsoft-jdk8u342+7-linux-amd64.tar.gz"
+		 echo "https://github.com/bell-sw/Liberica/releases/download/8u345+1/bellsoft-jdk8u345+1-linux-amd64.tar.gz"
 	;;
 	java11)
 		 echo "https://github.com/bell-sw/Liberica/releases/download/11.0.16+8/bellsoft-jdk11.0.16+8-linux-amd64.tar.gz"