Update to GeckoView Nightly 89.0.20210419094740 on master

[github-actions]

This (automated) patch updates GV Nightly on master to 89.0.20210419094740.

[codecov]

Codecov Report

Merging #10109 (dc875df) into master (1cf9140) will decrease coverage by 1.06%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #10109      +/-   ##
============================================
- Coverage     73.67%   72.60%   -1.07%     
+ Complexity     5925     4512    -1413     
============================================
  Files           806      660     -146     
  Lines         29883    22674    -7209     
  Branches       4946     3818    -1128     
============================================
- Hits          22017    16463    -5554     
+ Misses         5315     4274    -1041     
+ Partials       2551     1937     -614     

Impacted Files	Coverage Δ	Complexity Δ
...a/mozilla/components/support/base/ext/Throwable.kt	86.66% <0.00%> (-2.23%)	0.00% <0.00%> (ø%)
...illa/components/browser/menu/BrowserMenuAdapter.kt
...mponents/support/migration/TelemetryIdentifiers.kt
...mponents/feature/downloads/facts/DownloadsFacts.kt
...t/migration/session/StreamingSessionStoreParser.kt
...ava/mozilla/components/browser/menu/BrowserMenu.kt
...mponents/feature/contextmenu/ContextMenuFeature.kt
...onents/feature/search/BrowserStoreSearchAdapter.kt
...onents/feature/tabs/tabstray/TabsTrayInteractor.kt
.../session/engine/middleware/TrimMemoryMiddleware.kt
... and 137 more

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[mergify]

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