[MacPorts] #51677: elixir @1.2.5: Update to 1.3.0

[MacPorts]

#51677: elixir @1.2.5: Update to 1.3.0
---------------------------------+--------------------------------
 Reporter:  me@…                 |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.4
 Keywords:  haspatch maintainer  |       Port:  elixir
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 Please update Elixir to the latest release.

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Ticket URL: <https://trac.macports.org/ticket/51677>
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