Add extra hosts to the container request

[EndPositive]

The code-way of specifying --add-hosts on the Docker command-line.

E.g.

var extraHosts = []string{
    "subdomain.localhost:127.0.0.1",
}

Useful in test scenario's where dynamic domain names are used.

[codecov]

Codecov Report

Merging #436 (1193b9e) into main (cd84bb3) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #436      +/-   ##
==========================================
+ Coverage   65.13%   65.16%   +0.02%     
==========================================
  Files          19       19              
  Lines        1179     1180       +1     
==========================================
+ Hits          768      769       +1     
  Misses        304      304              
  Partials      107      107              

Impacted Files	Coverage Δ
container.go	87.23% <ø> (ø)
docker.go	65.32% <100.00%> (+0.06%)	⬆️

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