bump yang-tools version to 2.4.7

Change-Id: I0a257b8b524cd7f6e606d57e6d1a3a5388646ebe
diff --git a/lib/deps.json b/lib/deps.json
index 73067f7..690cb38 100644
--- a/lib/deps.json
+++ b/lib/deps.json
@@ -253,12 +253,12 @@
     "snakeyaml": "mvn:org.yaml:snakeyaml:1.15",
 
     // Note update BVER in tools/dev/bin/patch-yang-libs and YANG_VER in tools/build/onos-buck
-    "onos-yang-model":"mvn:org.onosproject:onos-yang-model:2.4.1",
-    "onos-yang-compiler-api":"mvn:org.onosproject:onos-yang-compiler-api:2.4.1",
-    "onos-yang-runtime":"mvn:org.onosproject:onos-yang-runtime:2.4.1",
-    "onos-yang-serializers-json":"mvn:org.onosproject:onos-yang-serializers-json:2.4.1",
-    "onos-yang-serializers-xml":"mvn:org.onosproject:onos-yang-serializers-xml:2.4.1",
-    "onos-yang-serializers-utils":"mvn:org.onosproject:onos-yang-serializers-utils:2.4.1",
+    "onos-yang-model":"mvn:org.onosproject:onos-yang-model:2.4.7",
+    "onos-yang-compiler-api":"mvn:org.onosproject:onos-yang-compiler-api:2.4.7",
+    "onos-yang-runtime":"mvn:org.onosproject:onos-yang-runtime:2.4.7",
+    "onos-yang-serializers-json":"mvn:org.onosproject:onos-yang-serializers-json:2.4.7",
+    "onos-yang-serializers-xml":"mvn:org.onosproject:onos-yang-serializers-xml:2.4.7",
+    "onos-yang-serializers-utils":"mvn:org.onosproject:onos-yang-serializers-utils:2.4.7",
     "org.apache.servicemix.bundles.dom4j":"mvn:org.apache.servicemix.bundles:org.apache.servicemix.bundles.dom4j:1.6.1_5",
     "plexus-utils": "mvn:org.codehaus.plexus:plexus-utils:3.0.24",
     "sshd-core": "mvn:org.apache.sshd:sshd-core:1.4.0",