Replace file-based URL with released on in dt-workflow

Change-Id: I430f159850a398e5d761aeb106243a66bad4b700
diff --git a/workflows/dt-workflow/requirements.yaml b/workflows/dt-workflow/requirements.yaml
index 510fc15..b2d0fa6 100644
--- a/workflows/dt-workflow/requirements.yaml
+++ b/workflows/dt-workflow/requirements.yaml
@@ -16,4 +16,4 @@
 dependencies:
 - name: dt-workflow-driver
   version: 1.0.1
-  repository: file://../../xos-services/dt-workflow-driver
+  repository: https://charts.opencord.org