fix(ci): update test container as per ansible-collections#872

Author: hunleyd

.azure-pipelines/azure-pipelines.yml

@@ -36,7 +36,7 @@ variables:
 resources:
   containers:
     - container: default
-      image: quay.io/ansible/azure-pipelines-test-container:6.0.0
+      image: quay.io/ansible/azure-pipelines-test-container:7.0.0
 
 pool: Standard