perl: Use version range for messages

[mpkorstanje]

🤔 What's changed?

We did not specify a version range for the Cucumber::Messages dependency. This wasn't a problem before, every version of message was usable. However once cucumber/common#1741 was merged this was no longer true.

Fixes #48

🏷️ What kind of change is this?

• 🐛 Bug fix (non-breaking change which fixes a defect)

♻️ Anything particular you want feedback on?

I've used an lower and upper bound:

requires "Cucumber::Messages", ">= 19.0.0, < 20.0.0";

Perl does not appear to have JavaScripts equivalent for any later version within this major (e.g. ^19.0.0).

https://metacpan.org/pod/CPAN::Meta::Spec#Version-Ranges

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.