Updating version to 1.7.0-rc3 for the RC

Change-Id: Id6255010c0edb17eae24c2ed5aabb02cdfa7a33a
diff --git a/providers/pcep/app/pom.xml b/providers/pcep/app/pom.xml
index 19f605a..ea110de 100644
--- a/providers/pcep/app/pom.xml
+++ b/providers/pcep/app/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-pcep-providers</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc3</version>
     </parent>
 
     <artifactId>onos-pcep</artifactId>