Update eslint-plugin-jest to the latest version 🚀

[greenkeeper]

Version 21.0.0 of eslint-plugin-jest just got published.

Dependency	eslint-plugin-jest
Current Version	20.0.3
Type	devDependency

The version 21.0.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of eslint-plugin-jest.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

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Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

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Your Greenkeeper Bot 🌴

[codecov]

Codecov Report

Merging #1795 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1795   +/-   ##
=======================================
  Coverage   21.14%   21.14%           
=======================================
  Files         252      252           
  Lines        5693     5693           
  Branches      690      697    +7     
=======================================
  Hits         1204     1204           
+ Misses       3956     3938   -18     
- Partials      533      551   +18

Impacted Files	Coverage Δ
addons/storyshots/src/storybook-channel-mock.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/configs/handle_routing.js	28.04% <0%> (ø)	⬆️
lib/ui/src/modules/shortcuts/actions/shortcuts.js	6.25% <0%> (ø)	⬆️
...codemod/src/transforms/update-organisation-name.js	40.62% <0%> (ø)	⬆️
lib/ui/src/modules/ui/libs/filters.js	47.36% <0%> (ø)	⬆️
...es__/update-addon-info/update-addon-info.output.js	0% <0%> (ø)	⬆️
addons/knobs/src/components/types/Select.js	7.81% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	33.33% <0%> (ø)	⬆️
addons/info/src/components/PropVal.js	43.15% <0%> (ø)	⬆️
addons/info/src/components/Node.js	38.88% <0%> (ø)	⬆️
... and 12 more

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