Bump att-workflow-driver version to 1.0.11

Change-Id: Iffea9bea5f20949dc6736162033d03d0b0f4db5e
diff --git a/workflows/att-workflow/requirements.yaml b/workflows/att-workflow/requirements.yaml
index 01dc8f3..f5e1053 100644
--- a/workflows/att-workflow/requirements.yaml
+++ b/workflows/att-workflow/requirements.yaml
@@ -15,5 +15,5 @@
 
 dependencies:
 - name: att-workflow-driver
-  version: 1.0.10
+  version: 1.0.11
   repository: file://../../xos-services/att-workflow-driver