Update scalacheck to 1.14.3

[nevillelyh]

No description provided.

[regadas]

Isn't this a dup of #761 ? 😄

[codecov-io]

Codecov Report

Merging #764 into develop will increase coverage by 0.17%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #764      +/-   ##
===========================================
+ Coverage    89.29%   89.46%   +0.17%     
===========================================
  Files          115      115              
  Lines         9011     9011              
  Branches       335      335              
===========================================
+ Hits          8046     8062      +16     
+ Misses         965      949      -16

Impacted Files	Coverage Δ
.../main/scala/com/twitter/algebird/Successible.scala	91.66% <0%> (+4.16%)	⬆️
...main/scala/com/twitter/algebird/monad/Reader.scala	55.55% <0%> (+5.55%)	⬆️
...src/main/scala/com/twitter/algebird/Interval.scala	88.69% <0%> (+12.17%)	⬆️

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[nevillelyh]

@regadas it's a rebase after fixing ruby gem issue.