Update snapshot version to 3.1.7-SNAPSHOT

Change-Id: I2f2f6f50bb75c43db17563928d8c22a0301b875e
diff --git a/gerrit_api_maven_local.bzl b/gerrit_api_maven_local.bzl
index aa9b50b..494910f 100644
--- a/gerrit_api_maven_local.bzl
+++ b/gerrit_api_maven_local.bzl
@@ -6,7 +6,7 @@
 gerrit_api is rule for fetching Gerrit plugin API using Bazel.
 """
 
-VER = "3.1.3-SNAPSHOT"
+VER = "3.1.7-SNAPSHOT"
 
 def gerrit_api_maven_local():
     bouncycastle_repos()