[MacPorts] #68364: rust: Update to 1.74.1

[MacPorts]

#68364: rust: Update to 1.74.1
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  Reporter:  Schamschula  |      Owner:  MarcusCalhoun-Lopez
      Type:  update       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.8.1
Resolution:               |   Keywords:
      Port:  rust         |
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Comment (by Schamschula):

 And I have have a completed build for {{{rust}}} 1.74.1!

 Now that I have an idea how the update process works, I'll go back and do
 this over for {{{rust-bootstrap}}} 1.74.0 and {{{rust}}} 1.75.0.

 Once I get those done, I'll put them in a PR, and we can see where we want
 to go from there regarding older macOS versions.

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Ticket URL: <https://trac.macports.org/ticket/68364#comment:21>
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