Prereleases unsupported #5
Description
Prerelease support was not added in #3 due to identifying additional requirements for this feature.
One issue is that the input include-all-prereleases does not let us specify on a per-version specifier which ones should allow prereleases.
Addtionally, the pre alias which is supported by setup-julia is problematic over the long term. Say we were to use pre this action a user may want to use ["1", "pre"] to attempt to indicate they want to test against the latest v1 release and latest v1 prerelease of Julia. Supposing that the latest version of Julia was 1.11.0 then ["1.11.0"] would be returned while if the latest version was 1.12.0-alpha then ["1.11.0", "1.12.0-alpha"]. The problem occurs when the latest version is say 2.0.0-alpha. Then the returned versions are ["1.11.0", "2.0.0-alpha"] which is not what the user intended.
The solution to both of these problems is to have a syntax for version specifiers which states that a specifier supports prereleases. The NPM semver package does have some prerelease support within specifiers when you use the ^X.Y.Z-0 syntax but doesn't support ^X.Y-0, ^X-0, ~X.Y-0, or X.Y.Z-0 (there may be more). Even the support that does exist is a bit weird:
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "2.0.0"], "^1.0.0-0") // Odd
'1.0.0'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "2.0.0"], "^1.1.0-0")
'1.1.0-beta'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "1.2.0", "2.0.0"], "^1.0.0-0")
'1.2.0'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "1.2.0", "2.0.0"], "^1.1.0-0")
'1.2.0'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "2.0.0"], "~1.0.0-0")
'1.0.0'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "2.0.0"], "~1.1.0-0")
'1.1.0-beta'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "1.2.0", "2.0.0"], "~1.0.0-0")
'1.0.0'
> semver.maxSatisfying(["1.0.0", "1.1.0-beta", "1.2.0", "2.0.0"], "~1.1.0-0")
'1.1.0-beta'
Finally, Julia uses the syntax v"1-" for the lowest version of 1.0.0 including all prereleases so we may want to adopt that syntax here as well.
Alias "pre" should only return a version on prereleases and not official versions (Punted)
Possibly alias "min" should be ignored when no Julia compat entry exists
Drop include-all-prereleases input in favor of Julia style trailing - (Punted)