[MacPorts] #67515: lal: Update to 7.3.1

[MacPorts]

#67515: lal: Update to 7.3.1
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  lpsinger
     Type:  update      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  lal
------------------------+----------------------
 {{{
 % port livecheck lal
 lal seems to have been updated (port version: 7.0.0, new version: 7.3.1)
 }}}

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Ticket URL: <https://trac.macports.org/ticket/67515>
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