Bug 1628413 - Disable Nightlies until Google Play catches up

[JohanLorenzo]

To see if it matches Google Play's new review delay

Pull Request checklist

• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features. In addition, it includes a screenshot of a successful accessibility scan to ensure no new defects are added to the product.

After merge

• Milestone: Make sure issues finished by this pull request are added to the milestone of the version currently in development.

To download an APK when reviewing a PR:

1. click on Show All Checks,
2. click Details next to "Taskcluster (pull_request)" after it appears and then finishes with a green checkmark,
3. click on the "Fenix - assemble" task, then click "Run Artifacts".
4. the APK links should be on the left side of the screen, named for each CPU architecture

[codecov-io]

Codecov Report

Merging #9810 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #9810   +/-   ##
=========================================
  Coverage     19.19%   19.20%           
  Complexity      521      521           
=========================================
  Files           337      337           
  Lines         13684    13684           
  Branches       1833     1833           
=========================================
+ Hits           2627     2628    +1     
  Misses        10817    10817           
+ Partials        240      239    -1     

Impacted Files	Coverage Δ	Complexity Δ
...c/main/java/org/mozilla/fenix/components/Search.kt	100.00% <0.00%> (+8.33%)	2.00% <0.00%> (ø%)

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