Update language codes in AmericasNLP 2022 baseline

[akreal]

This is to match the codes used last year, hopefully that's fine.

[codecov]

Codecov Report

Merging #4441 (5930917) into master (fc62b1c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4441   +/-   ##
=======================================
  Coverage   82.77%   82.77%           
=======================================
  Files         474      474           
  Lines       40755    40755           
=======================================
  Hits        33733    33733           
  Misses       7022     7022           

Flag	Coverage Δ
test_integration_espnet1	66.58% <ø> (ø)
test_integration_espnet2	49.30% <ø> (ø)
test_python	69.73% <ø> (ø)
test_utils	23.45% <ø> (ø)

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[sw005320]

Thanks, @akreal!