[MacPorts] #59927: bison: update to 3.8

[MacPorts]

#59927: bison: update to 3.8
------------------------+----------------------
  Reporter:  ballapete  |      Owner:  mascguy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  bison      |
------------------------+----------------------
Changes (by kencu):

 * cc: kencu (removed)


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Ticket URL: <https://trac.macports.org/ticket/59927#comment:60>
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