[MacPorts] #54537: allegro5: Update to 5.2.2.0 and switch to Github

[MacPorts]

#54537: allegro5: Update to 5.2.2.0 and switch to Github
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 Reporter:  mf2k         |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:  allegro5
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 I have a modified Portfile updating allegro5 to the latest version and
 switching to GitHub as the source. See #54154.

 The problem is that while it builds for me normally, I am not able to get
 the universal build working. So I won't commit this yet.

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Ticket URL: <https://trac.macports.org/ticket/54537>
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