perl: Adding a new translation has a dependency on perl

[mpkorstanje]

🤔 What's the problem you've observed?

When a contributor updates gherkin-languages.json they'll run make copy-gherkin-languages to copy this file and/or generate derived for each implementation. This process should be light weight only depend on a few tools such as jq, however for Perl, this process currently depends on Perl.

gherkin/perl/Makefile

Lines 32 to 37 in 1cc2ef0

	copy-gherkin-languages: # lib/Gherkin/Generated/Languages.pm ## Copy gherkin-languages.json and/or generate derived files
	echo "TODO: Depends on perl, this task should only depend on jq"
	clean-gherkin-languages: ## Remove gherkin-languages.json and any derived files
	# rm -f lib/Gherkin/Generated/Languages.pm
	echo "TODO: Depends on perl, this task should only depend on jq"

✨ Do you have a proposal for making it better?

Consider using jq instead of perl to generate Languages.pm instead. For example see:

https://github.com/cucumber/gherkin/blob/1cc2ef0153603c5e51818b59ff6d632238491226/go/dialects_builtin.go.jq

[mpkorstanje]

@ehuelsmann might be good to pick this up in combination with #32

[ehuelsmann]

This problem would be solved by using the sames solution as the one i suggested in #32. I guess I could try to generate valid Perl from inside jq, but I wonder if that's worth the effort, or that we're really trying to solve the wrong problem here...

[mpkorstanje]

Perhaps, let's try to work this out in #32.