Build events-log for 3.9 and 3.10

Change-Id: Idfa9dac29aa12bc5c68e3b02011cfbb905887717
diff --git a/jenkins/gerrit-bazel-plugin-events-log.yaml b/jenkins/gerrit-bazel-plugin-events-log.yaml
index 2cbeb41..140a18e 100644
--- a/jenkins/gerrit-bazel-plugin-events-log.yaml
+++ b/jenkins/gerrit-bazel-plugin-events-log.yaml
@@ -7,3 +7,5 @@
           gerrit-branch:
             - master
             - stable-3.8
+            - stable-3.9
+            - stable-3.10