Update gatsby in docs from 1.9.118 to 1.9.119

[dependencies]

Dependencies.io has updated gatsby (a npm dependency in docs) from "1.9.118" to "1.9.119".

1.9.119

No content found. Please open an issue at https://github.com/dependencies-io/support if you think this content could have been found.

[codecov]

Codecov Report

Merging #2354 into master will increase coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2354      +/-   ##
==========================================
+ Coverage   21.23%   21.38%   +0.14%     
==========================================
  Files         283      283              
  Lines        6155     6182      +27     
  Branches      717      848     +131     
==========================================
+ Hits         1307     1322      +15     
+ Misses       4307     4229      -78     
- Partials      541      631      +90

Impacted Files	Coverage Δ
app/react/src/server/utils.js	44.11% <0%> (-9.46%)	⬇️
app/react/src/client/preview/error_display.js	0% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Rules.js	0% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Info.js	0% <0%> (ø)	⬆️
.../ui/src/modules/ui/components/left_panel/header.js	29.62% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Tags.js	0% <0%> (ø)	⬆️
addons/info/src/components/markdown/htags.js	30% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Item.js	0% <0%> (ø)	⬆️
...s/left_panel/stories_tree/tree_decorators_utils.js	45.23% <0%> (ø)	⬆️
addons/storyshots/src/require_context.js	0% <0%> (ø)	⬆️
... and 29 more

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