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

[MacPorts]

#66819: go 1.20.0 doesn't build on High Sierra
--------------------+----------------------
 Reporter:  blair   |      Owner:  ci42
     Type:  defect  |     Status:  assigned
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  go
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 {{{
 # port -v upgrade --enforce-variants outdated
 --->  Computing dependencies for go.
 --->  Fetching distfiles for go
 --->  Verifying checksums for go
 --->  Checksumming go1.20.src.tar.gz
 --->  Extracting go
 --->  Extracting go1.20.src.tar.gz
 Executing:  cd "/opt/local/var/macports/build
 /_Users_blair_Code_MacPorts_macports-ports.git_lang_go/go/work" &&
 /usr/bin/gzip -dc '/opt/local/var/macports/distfiles/go/go1.20.src.tar.gz'
 | /usr/bin/tar -xf -
 --->  Configuring go
 --->  Building go
 Executing:  cd "/opt/local/var/macports/build/_Users_bz_macports-
 ports.git_lang_go/go/work/go/src" && ./make.bash
 Building Go cmd/dist using /opt/local/lib/go-1.4. (go1.4.3 darwin/amd64)
 can't load package: package ./cmd/dist: found packages build.go (main) and
 notgo117.go (building_Go_requires_Go_1_17_13_or_later) in
 /opt/local/var/macports/build/_Users_blair_Code_MacPorts_macports-
 ports.git_lang_go/go/work/go/src/cmd/dist
 Command failed:  cd "/opt/local/var/macports/build
 /_Users_blair_Code_MacPorts_macports-ports.git_lang_go/go/work/go/src" &&
 ./make.bash
 Exit code: 1
 Error: Failed to build go: command execution failed
 }}}

 `/opt/local/lib/go-1.4` does exist on my system.

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Ticket URL: <https://trac.macports.org/ticket/66819>
MacPorts <https://www.macports.org/>
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