Show failures on all CI configurations

Rare that a pull request will fail in all configurations.

Jenkinsfile

@@ -2,10 +2,14 @@
 
 /* `buildPlugin` step provided by: https://github.com/jenkins-infra/pipeline-library */
 buildPlugin(
+  // Container agents start faster and are easier to administer
   useContainerAgent: true,
+  // Show failures on all configurations
+  failFast: false,
   // Opt-in to the Artifact Caching Proxy, to be removed when it will be in opt-out.
   // See https://github.com/jenkins-infra/helpdesk/issues/2752 for more details and updates.
   artifactCachingProxyEnabled: true,
+  // Test Java 8 with default Jenkins version, Java 11 with a recent LTS, Java 17 even more recent
   configurations: [
     [platform: 'linux',   jdk: '17', jenkins: '2.375'],
     [platform: 'linux',   jdk: '11', jenkins: '2.361.4'],