fix azure path issue

Author: bhazelton

ci/azure-piplines.yml

@@ -29,7 +29,7 @@ jobs:
   # (because sometimes hera_cal pins to weird things and overwrites the earlier install.)
   # keep the earlier install because it ensures the right dependencies are grabbed.
   - bash: |
-      cd ../
+      cd s
       pip install .
       cd ../hera_cal
     displayName: install pyuvdata