Update local setup script to stable-3.10

Change-Id: I7d141a65b55b2187dc0a98f80e428d89ed54d6ac

setup_local_env/setup.sh

diff --git a/setup_local_env/setup.sh b/setup_local_env/setup.sh
index 3593f96..ce517e5 100755
--- a/setup_local_env/setup.sh
+++ b/setup_local_env/setup.sh
@@ -16,7 +16,7 @@
 
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-GERRIT_BRANCH=stable-3.9
+GERRIT_BRANCH=stable-3.10
 GERRIT_CI=https://gerrit-ci.gerritforge.com/view/Plugins-$GERRIT_BRANCH/job
 LAST_BUILD=lastSuccessfulBuild/artifact/bazel-bin/plugins