Sets the distributionManagement configuration for nexus staging plugin

[aslakhellesoy]

Hi @Dave-TH,

Thanks for your making your first contribution to Cucumber, and welcome to the Cucumber committers team! You can now push directly to this repo and all other repos under the cucumber organization! 🍾

In return for this generous offer we hope you will:

• ✅ Continue to use branches and pull requests. When someone on the core team approves a pull request (yours or someone else's), you're welcome to merge it yourself.
• 💚 Commit to setting a good example by following and upholding our code of conduct in your interactions with other collaborators and users.
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On behalf of the Cucumber core team, Aslak Hellesøy Creator of Cucumber

[mpkorstanje]

Cheers, looks like the build is failing because it is unable to decrypt the credentials. I'll try to give it a look on monday.