update kind-voltha version for release job

Change-Id: I78c19cf6268431080cd8ab4597052c0f4d4ed601
(cherry picked from commit 82bbd29a01afc7ab840b97f9ff7dd8ec77968743)
diff --git a/Jenkinsfile-voltha-build b/Jenkinsfile-voltha-build
index f2e8514..91e2422 100644
--- a/Jenkinsfile-voltha-build
+++ b/Jenkinsfile-voltha-build
@@ -24,7 +24,7 @@
                 sh returnStdout: true, script: "git clone -b master ${cordRepoUrl}/${configBaseDir}"
                 sh returnStdout: true, script: "git clone -b ${branch} ${cordRepoUrl}/voltha-system-tests"
                 if (params.branch == "voltha-2.3") {
-                    sh returnStdout: true, script: "git clone -b 3.0.2 https://github.com/ciena/kind-voltha.git"
+                    sh returnStdout: true, script: "git clone -b 3.0.3 https://github.com/ciena/kind-voltha.git"
                 } else {
                     sh returnStdout: true, script: "git clone https://github.com/ciena/kind-voltha.git"
                 }