feat: enhanced pipeline details

[simonecorsi]

Hi! 👋

Thank for this plugin, I've been using it but I'm working under a older version of Gitlab so sometimes we're missing some feature.

This PR brings duration field to Gitlab version under v15, since fields updated_at and created_at doesn't exists on the /pipelines endpoint.

I was thinking we could also use the /version endpoint to get the gitlab version at the start of this plugin so we could use it later on subsequent calls to avoid wasting bandwidth, WDYT?

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After

[satrox28]

Hi @simonecorsi ,

Thanks for raising the PR, can you provide me your gitlab version where you are noticing this issue?.

[simonecorsi]

Hey @satrox28!

Thanks for getting back to me on this, for security policies I can't disclose our self-hosted version in public, but you can pvt me on twitter if you want to discuss this, my handle is im_simonecorsi 😄