fix Jenkins failure due to new NCSS access type on Thredds

See PR https://github.com/bird-house/birdhouse-deploy/pull/200 that enabled NCSS on Thredds.

Fix this error:

16:44:55  _
PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-1DataAccess.ipynb::Cell
0 _
  Notebook cell execution failed
  Cell 0: Cell outputs differ

  Input:
  from siphon.catalog import TDSCatalog
  url =
/pavics.ouranos.ca/twitcher/ows/proxy/thredds/catalog/datasets/simulations/bias_adjusted/cmip5/ouranos/cb-oura-1.0/catalog.xml"
SE_PROD_DATA

  # Create Catalog
  cat = TDSCatalog(url)

  # List of datasets
  print(f"Number of datasets: {len(cat.datasets)}")

  # Access mechanisms - here we are interested in OPENDAP, a
eaming protocol
  cds = cat.datasets[0]
  print(f"Access URLs: {tuple(cds.access_urls.keys())}")

  Traceback:
   mismatch 'stdout'

   assert reference_output == test_output failed:

    "Number of da...CS', 'WMS')\n" == "Number of
Subset')\n"
    Skipping 87 identical leading characters in diff, use -v to

    - CS', 'WMS', 'NetcdfSubset')
    + CS', 'WMS')

Ouranosinc / PAVICS-landing

fix Jenkins failure due to new NCSS access type on Thredds #38