More refactoring to VersionManager
#3918
Draft
+463
−139
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.

Extract logic to check for Windows platform into a helper function and use it across the codebase.
Make sure all errors interface are the same for the ruby version managers.
Use
unknowninstead oferror.Using unknown is safer than any because it forces you to narrow the type
(like casting to Error) before accessing properties, preventing runtime
errors.
Extract helper to build the ruby executable uri
Extract method to check if a path exists in the filesystem
Improve sorting logic in Chruby version selection
Just make this implementation clearer by introducing intermediate
variables.
Improve documentation of Chruby and VersionManager