* move getLatestRelease logic from [GitHubRelease] to common-fetch
- so that the sorting and prerelease logic can be used for other
services too, like commits-since
* add sort and prerelease query params to [GitHubCommitsSince]
- they only work when using the 'latest' version of course
- uses same logic as release service
* reuse queryParamSchema from common-fetch for [GitHubTag]
- as they were the exact same schema
* refactor [GitHubCommitsSince] tests to use withRegex
- and the same variable everywhere
* split out release/tag logic from common-fetch to common-release (affects [GitHubCommitsSince], [GitHubRelease], [GitHubTag])
- this logic is only used for code related to releases & tags, so made
sense as a split point
Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>
