Known Fatal error with join() function

[OzzyCzech]

There is an issue with join() function https://www.php.net/manual/en/function.join.php

Waiting for merge PR: wp-cli/php-cli-tools#142

vendor/bin/potrans --apikey "123456"  --input ./tests/example-cs_CZ.po --verbose --output ./tests/out.po

Fatal error: Uncaught TypeError: join(): Argument #2 ($array) must be of type ?array, string given in /Volumes/Work/test/vendor/wp-cli/php-cli-tools/lib/cli/Arguments.php:485
Stack trace:
#0 /Volumes/Work/test/vendor/wp-cli/php-cli-tools/lib/cli/Arguments.php(485): join(Array, ' ')
#1 /Volumes/Work/test/vendor/wp-cli/php-cli-tools/lib/cli/Arguments.php(401): cli\Arguments->_parseOption(Object(cli\arguments\Argument))
#2 /Volumes/Work/test/vendor/om/potrans/src/potrans.php(44): cli\Arguments->parse()
#3 /Volumes/Work/test/vendor/om/potrans/bin/potrans(3): require('/Volumes/Work/t...')
#4 {main}
  thrown in /Volumes/Work/test/vendor/wp-cli/php-cli-tools/lib/cli/Arguments.php on line 485

PS: can be temporary fixed by swapping args in vendor/wp-cli/php-cli-tools/lib/cli/Arguments.php on line 485