JENKINS-69581: Install java-11-openjdk

If Jenkins recieves a non-zero error code when runing `java
-fullversion` on the remote agent then it will install java 11 using
yum.

Previously this installed java 8 which is no longer supported on Jenkins agents
where the controller is running version 2.361.x or higher

src/main/java/hudson/plugins/ec2/ssh/EC2UnixLauncher.java

@@ -236,7 +236,7 @@ protected void launchScript(EC2Computer computer, TaskListener listener) throws
 
             // TODO: parse the version number. maven-enforcer-plugin might help
             final String javaPath = node.javaPath;
-            executeRemote(computer, conn, javaPath + " -fullversion", "sudo yum install -y java-1.8.0-openjdk.x86_64", logger, listener);
+            executeRemote(computer, conn, javaPath + " -fullversion", "sudo yum install -y java-11-openjdk", logger, listener);
             executeRemote(computer, conn, "which scp", "sudo yum install -y openssh-clients", logger, listener);
 
             // Always copy so we get the most recent remoting.jar