Download avatars-gravatar from stable-3.3 branch

Change-Id: If5c7f7554312e7c16a37de8ed3227b5d3290a48d
diff --git a/fpm/Makefile b/fpm/Makefile
index 0b4a578..77ea118 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -24,7 +24,7 @@
 LIBS_JOBS= \
   plugin-out-of-the-box-bazel-master-master/lastSuccessfulBuild/artifact/bazel-bin/plugins/out-of-the-box/out-of-the-box.jar
 PLUGINS_JOBS= \
-  plugin-avatars-gravatar-bazel-master-master/lastSuccessfulBuild/artifact/bazel-bin/plugins/avatars-gravatar/avatars-gravatar.jar \
+  plugin-avatars-gravatar-bazel-master-stable-3.3/lastSuccessfulBuild/artifact/bazel-bin/plugins/avatars-gravatar/avatars-gravatar.jar \
   plugin-uploadvalidator-bazel-master/lastSuccessfulBuild/artifact/bazel-bin/plugins/uploadvalidator/uploadvalidator.jar
 
 RPM_OUT=$(OUT)/gerrit-$(VERSION)-$(RELEASE).$(BUILD_ARCH).rpm