Comorian examples use Latn script, not Arab

https://github.com/google/fonts/blob/e710c2cf58ae5a863a551e503b54ff76e0e6d9f1/lang/languages/swb_Arab.textproto#L3-L11

I would have expected this to have been swapped with swb_Latin, but *that* file claims that population is 0 and has completely different sample texts, so I'm not sure what has happened here.