Fix pre-release version comparison across versions with different non-canonical segments

[greysteil]

Description:

Currently, the following happens:

Gem::Version.new("1.0.beta") >= Gem::Version.new("1.0.0.beta")
# => true
Gem::Version.new("1.0.beta") >= Gem::Version.new("1.0.0.alpha")
# => false

That is inconsistent. I propose that the second statement should be true. (Alternatively we could make the first statement false, but that is arguably a breaking change.)

Tasks:

• Describe the problem / feature
• Write tests
• Write code to solve the problem
• Get code review from coworkers / friends

I will abide by the code of conduct.

[deivid-rodriguez]

@greysteil See #2651 😃

[greysteil]

Ha! Make sense. I think the current situation is definitely a bug, and we should ship this as a bug fix. The case I put in the description of this PR isn't really defensible as a feature.

I'll close here and add a 👍 to #2651.