[MacPorts] #42359: sbcl: update to 1.1.15

[MacPorts]

#42359: sbcl: update to 1.1.15
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 Reporter:  crossd@…  |      Owner:  macports-tickets@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.2.1
 Keywords:  haspatch  |       Port:  sbcl maxima
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 Please see attached diffs for upgrading SBCL to 1.1.15, and rev-bumping
 Maxima.

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Ticket URL: <https://trac.macports.org/ticket/42359>
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