version: bump up to 3.2.7

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
diff --git a/version/version.go b/version/version.go
index f7f7ba4..d239196 100644
--- a/version/version.go
+++ b/version/version.go
@@ -26,7 +26,7 @@
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.2.6+git"
+	Version           = "3.2.7"
 	APIVersion        = "unknown"
 
 	// Git SHA Value will be set during build