Only update CLI snapsots on postpublish script, skip smoke tests

[Hypnosphi]

This is a follow-up to #2565

Smoke tests are too long to run, but there's no actual need to do them after publishing (they will run on CI anyway).

Labelling it with patch as it affects publishing process

[codecov]

Codecov Report

Merging #2671 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2671   +/-   ##
=======================================
  Coverage   34.35%   34.35%           
=======================================
  Files         389      389           
  Lines        8747     8747           
  Branches      903      904    +1     
=======================================
  Hits         3005     3005           
+ Misses       5139     5127   -12     
- Partials      603      615   +12

Impacted Files	Coverage Δ
.../src/modules/ui/components/stories_panel/header.js	29.62% <0%> (ø)	⬆️
lib/codemod/src/transforms/move-buildin-addons.js	46.87% <0%> (ø)	⬆️
...tories_panel/stories_tree/tree_decorators_utils.js	45.23% <0%> (ø)	⬆️
addons/knobs/src/components/types/Number.js	7.93% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/routed_link.js	22.72% <0%> (ø)	⬆️
addons/info/src/components/types/Shape.js	68.62% <0%> (ø)	⬆️
lib/core/src/client/preview/story_store.js	52.88% <0%> (ø)	⬆️
addons/actions/src/lib/decycle.js	53.52% <0%> (ø)	⬆️
app/react-native/src/bin/storybook.js	0% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Item.js	0% <0%> (ø)	⬆️
... and 47 more

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[shilman]

LGTM! Thanks!!!