Extract dependencies from scala-cli via sbt export

[fthomas]

This implements the idea sketched in #2686 (comment). ScalaCliAlg extracts dependencies and resolvers from a Scala CLI "project" via an export to a sbt build and then leveraging the already existing SbtAlg for the actual data extraction.

These two PRs demonstrate that this works:

• https://github.com/scala-steward-org/test-repo-1/pull/35/files
• https://github.com/scala-steward-org/test-repo-1/pull/36/files

Note that the base branch of these PRs only contain a single script.scala file. There are no other files.

[alejandrohdezma]

LGTM

[codecov]

Codecov Report

Base: 90.57% // Head: 90.61% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (15a1c08) compared to base (1f0282a).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2933      +/-   ##
==========================================
+ Coverage   90.57%   90.61%   +0.04%     
==========================================
  Files         154      155       +1     
  Lines        3045     3059      +14     
  Branches      196      208      +12     
==========================================
+ Hits         2758     2772      +14     
  Misses        287      287              

Impacted Files	Coverage Δ
...g/scalasteward/core/buildtool/maven/MavenAlg.scala	87.50% <ø> (ø)
...org/scalasteward/core/buildtool/mill/MillAlg.scala	78.04% <ø> (ø)
...la/org/scalasteward/core/application/Context.scala	75.32% <100.00%> (+0.32%)	⬆️
...lasteward/core/buildtool/BuildToolDispatcher.scala	100.00% <100.00%> (ø)
...asteward/core/buildtool/scalacli/ScalaCliAlg.scala	100.00% <100.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[fthomas]

Btw, this integration could be nicer and less hacky with a dump / export --json command as described in VirtusLab/scala-cli#1005 / VirtusLab/scala-cli#1791.

[mzuehlke]

Cool idea to use the sbtexport