fix: replace wrong ISO 639-2 codes: "ger" => "deu", "chi" => "zho" #27

Job	Run time
rake / rake / prepare / prepare	9s
rake / rake / prepare / prepare	9s
rake / rake / Test on Ruby 3.1 ubuntu-latest	1m 10s
rake / rake / Test on Ruby 3.1 ubuntu-latest	1m 10s
rake / rake / Test on Ruby 3.0 ubuntu-latest	1m 17s
rake / rake / Test on Ruby 3.0 ubuntu-latest	1m 17s
rake / rake / Test on Ruby 3.0 windows-latest	3m 40s
rake / rake / Test on Ruby 3.0 windows-latest	3m 40s
rake / rake / Test on Ruby 3.0 macos-latest	54s
rake / rake / Test on Ruby 3.0 macos-latest	54s
rake / rake / Test on Ruby 3.1 macos-latest	54s
rake / rake / Test on Ruby 3.1 macos-latest	54s
rake / rake / Test on Ruby 3.1 windows-latest	3m 15s
rake / rake / Test on Ruby 3.1 windows-latest	3m 15s
rake / rake / Test on Ruby 3.2 macos-latest	50s
rake / rake / Test on Ruby 3.2 macos-latest	50s
rake / rake / Test on Ruby 3.2 ubuntu-latest	1m 12s
rake / rake / Test on Ruby 3.2 ubuntu-latest	1m 12s
rake / rake / Test on Ruby 3.2 windows-latest	3m 33s
rake / rake / Test on Ruby 3.2 windows-latest	3m 33s
rake / rake / Test on Ruby 3.3 macos-latest	53s
rake / rake / Test on Ruby 3.3 macos-latest	53s
rake / rake / Test on Ruby 3.3 ubuntu-latest	1m 12s
rake / rake / Test on Ruby 3.3 ubuntu-latest	1m 12s
rake / rake / Test on Ruby 3.3 windows-latest	9m 29s
rake / rake / Test on Ruby 3.3 windows-latest	10m 28s
rake / rake / tests-passed	1s
rake / rake / tests-passed	3s
	57m 59s

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