#324: AsyncFunc spawns new thread for each apply() call

[fabriciofx]

As per #324 .

[codecov-io]

Codecov Report

Merging #332 into master will not change coverage.
The diff coverage is 80%.

@@            Coverage Diff            @@
##             master     #332   +/-   ##
=========================================
  Coverage     74.05%   74.05%           
  Complexity      425      425           
=========================================
  Files           131      131           
  Lines          1430     1430           
  Branches         68       68           
=========================================
  Hits           1059     1059           
  Misses          351      351           
  Partials         20       20

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/cactoos/func/AsyncFunc.java	83.33% <80%> (ø)	5 <3> (ø)	⬇️

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[caarlos0]

duplicate of #330

[fabriciofx]

Closed by #330 .

[0crat]

Oops! Job gh:yegor256/cactoos#332 was not in scope