using latest voltha-ci-tool container to correctly generate coverage reports

Change-Id: I2fe45857e648be853315b0992992b9484d3d9a10
diff --git a/VERSION b/VERSION
index 347f583..f9f73cc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.4.1
+1.4.2-dev