Make prereqsource a dep
v0.1.2

 [00 Bugfix]
 - Make sure PrereqSource role is a dep

 [Dependencies::Added / runtime requires]
 - Dist::Zilla::Role::PrereqSource

 [Dependencies::Changed / build requires]
 - Module::Build 0.4200 → 0.4202

 [Dependencies::Changed / configure requires]
 - Module::Build 0.4200 → 0.4202