Bump plugin API to 3.4.0

Update in Docker image too

Change-Id: I4547571b857b76c71319a6f1df37faf585ccfe6c
diff --git a/BUILD b/BUILD
index 5f84d54..171e9da 100644
--- a/BUILD
+++ b/BUILD
@@ -8,7 +8,7 @@
     srcs = glob(["src/main/java/**/*.java"]),
     manifest_entries = [
         "Gerrit-PluginName: " + plugin_name,
-        "Gerrit-ApiVersion: 3.3.4",
+        "Gerrit-ApiVersion: 3.4.0",
         "Implementation-Title: Task Plugin",
         "Implementation-URL: https://gerrit-review.googlesource.com/#/admin/projects/plugins/" + plugin_name,
         "Gerrit-Module: com.googlesource.gerrit.plugins.task.Modules$Module",
diff --git a/WORKSPACE b/WORKSPACE
index fecee7e..866c8df 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -8,7 +8,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "10e78cc706760ff24cbc67ba527f9a8e4134d66f",
+    commit = "7ff4605f48db148197675a0d2ea41ee07cb72fd3",
     #local_path = "/home/<user>/projects/bazlets",
 )
 
diff --git a/test/docker/gerrit/Dockerfile b/test/docker/gerrit/Dockerfile
index b15542e..12aa74a 100755
--- a/test/docker/gerrit/Dockerfile
+++ b/test/docker/gerrit/Dockerfile
@@ -1,4 +1,4 @@
-FROM gerritcodereview/gerrit:3.3.4-ubuntu20
+FROM gerritcodereview/gerrit:3.4.0-ubuntu20
 
 ENV GERRIT_SITE /var/gerrit
 RUN git config -f "$GERRIT_SITE/etc/gerrit.config" auth.type \