fix: properly compare versions

[tmercswims]

Uses semver's lt() function to compare version strings, rather than <.

Fixes #157.

[CLAassistant]

All committers have signed the CLA.

[tmercswims]

Is there anyone who can take a look at this change? I'd love to get it in and propagated so that I can use new things against my Octopus instance 🙂

I also feel compelled to apologize for how the tone of the issue I filed could be taken, I didn't mean for it to come across as explaining-how-something-works-to-the-people-who-made-it - I was very occupied with the investigation that I did and keeping everything straight for myself, which is why the explanation is so long 😅 Apologies if it was taken that way, no offense meant.

[jbristowe]

Hey @tmercswims! My apologies. I missed this. Looking now.

No need to apologise. Your issue description (explanation) is EXCELLENT. Thank you for taking the time to write this up. It helped me understand the issue immediately.

[rory-hughes-cko]

Is it possible for someone to give this PR a review?

[benPearce1]

Tested locally

[octoreleasebot]

PR did not have successful (green) build statuses, as required by our PRGB policy.

Justification provided by robert.erez (@zentron) was:

Merged before PRGB defaults were added to the repository. All looks fine