re add rspec.xml

Ultimately the actions step needs to updated to not run if rspec.xml doesn't exist. We've added specs but there isn't enough to satisfy the pipeline since its processes splits into three test tasks. We'd need at least three separate spec files.

rspec.xml

@@ -0,0 +1,3 @@
+# this file is needed to pass the pipeline since there aren't many specs to run
+# that would generate this file.
+# Without this file, the Move Test action step fails.