Updates for new cs kit

[jdebacker]

This PR makes a couple modifications for the cs-config files to work with the lates cs-kit.

@hdoupe -- It looks like the latest cs-kit will fix the bokeh plot rendering issues on C/S:

 cs_kit.exceptions.CSKitError: "Bokeh outputs must be created with json_item. Reference: https://docs.compute.studio/publish/outputs/#bokeh"

Is that correct?

[codecov-commenter]

Codecov Report

Merging #357 (01b97b0) into master (53246a1) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #357   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           11        11           
  Lines         1109      1109           
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  Hits          1109      1109           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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[hdoupe]

LGTM, @jdebacker !