skinny 4.0.0
skinny 4.0.0

* skinny 4.0.0
* skinny: update homepage
  The new homepage is what is linked on GitHub, and the original one
  returns 404.

  While we're here, let's clean up the manual env script using
  `write_env_script`.
* skinny: fix style issues

Closes #96840.

Co-authored-by: Carlo Cabrera <3ffc397d0e4bded29cb84b56167de54c01e3a55b@users.noreply.github.com>
Co-authored-by: Sean Molenaar <ae12f88e98a0d80c21033151dc6b29c1bc6daefe@users.noreply.github.com>
Signed-off-by: Branch Vincent <0e6296586cbd330121a33cee359d4396296e2ead@users.noreply.github.com>
Signed-off-by: BrewTestBot <8a898ee6867e4f2028e63d2a6319b2224641c06c@users.noreply.github.com>

chrisfinazzo/homebrew-core,lemzwerg/homebrew-core,chrisfinazzo/homebrew-core,Homebrew/homebrew-core,nandub/homebrew-core,nbari/homebrew-core,zyedidia/homebrew-core,stgraber/homebrew-core,adam-moss/homebrew-core,filcab/homebrew-core,lemzwerg/homebrew-core,adam-moss/homebrew-core,Homebrew/homebrew-core,stgraber/homebrew-core,filcab/homebrew-core,makigumo/homebrew-core,nandub/homebrew-core,sjackman/homebrew-core,cblecker/homebrew-core,cblecker/homebrew-core,makigumo/homebrew-core,sjackman/homebrew-core,zyedidia/homebrew-core,nbari/homebrew-core