[MacPorts] #66819: go 1.20.0 doesn't build on High Sierra

[MacPorts]

#66819: go 1.20.0 doesn't build on High Sierra
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  Reporter:  blair   |      Owner:  ci42
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  go      |
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Comment (by herbygillot):

 I agree 100%, @kencu.  But the problem here is not in regards to older
 systems.

 The update directly committed broke supported systems for x86_64. Go 1.20
 supports High Sierra and higher for x86_64.

 This could have been caught ahead of time in CI, which I was trying to do
 via the PR I referenced, but that was completely ignored and an update
 just committed to master outright.  This is the second time this has
 happened with the Go port specifically, requiring cleanup & fixes after
 the fact.

 Like Rust, this is a very key toolchain port, and when it's broken, many
 other ports downstream are affected, and maintainers can no longer test
 their updates to their downstream ports in CI (especially in this case,
 our Github CI is x86_64 only, so effectively anything Go was untestable).

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Ticket URL: <https://trac.macports.org/ticket/66819#comment:9>
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