Build analytics plugin on stable-3.3

Build the analytics plugin on the stable-3.3
branch, switching to Java 11 by default for all
branches >= 3.3.

Change-Id: I84fc136feebcd6108faf80178f323310a7cc95e2
diff --git a/jenkins/gerrit-sbt-build-plugin.sh b/jenkins/gerrit-sbt-build-plugin.sh
index 3be6f25..9e93277 100644
--- a/jenkins/gerrit-sbt-build-plugin.sh
+++ b/jenkins/gerrit-sbt-build-plugin.sh
@@ -1,6 +1,13 @@
 #!/bin/bash -e
 
-. set-java.sh 8
+case "{branch}" in
+  stable-2.16|stable-3.0|stable-3.1|stable-3.2)
+    . set-java.sh 8
+    ;;
+  *)
+    . set-java.sh 11
+    ;;
+esac
 
 java -fullversion
 bazelisk version
diff --git a/jenkins/gerrit-sbt-plugin-analytics.yaml b/jenkins/gerrit-sbt-plugin-analytics.yaml
index 24d9953..e9c64cb 100644
--- a/jenkins/gerrit-sbt-plugin-analytics.yaml
+++ b/jenkins/gerrit-sbt-plugin-analytics.yaml
@@ -4,6 +4,7 @@
       - 'plugin-{name}-sbt-{branch}':
           branch:
             - master
+            - stable-3.3
             - stable-3.2
             - stable-3.1
             - stable-3.0