Restore URL-based links on requirements files

Change-Id: I230e0484c29a62add870ff57ad520c798fd3a23f
diff --git a/workflows/tt-workflow/requirements.yaml b/workflows/tt-workflow/requirements.yaml
index 86d8761..36d3eef 100644
--- a/workflows/tt-workflow/requirements.yaml
+++ b/workflows/tt-workflow/requirements.yaml
@@ -16,4 +16,4 @@
 dependencies:
 - name: tt-workflow-driver
   version: 1.0.0
-  repository: file://../../xos-services/tt-workflow-driver
+  repository: https://charts.opencord.org