[MacPorts] #39018: dpkg @1.14.29: update to 1.18.3

[MacPorts]

#39018: dpkg @1.14.29: update to 1.18.3
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  Reporter:  cooljeanius  |      Owner:  cooljeanius
      Type:  update       |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:  fixed        |   Keywords:  haspatch
      Port:  dpkg         |
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Comment (by xeron):

 I don't remember. I think I wasn't the one who added it. I tested and
 build works just fine without it. I can open a PR to remove
 `extract.asroot yes` but I won't be able to explain why it was added.

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Ticket URL: <https://trac.macports.org/ticket/39018#comment:45>
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