Implement Stacks RFC 0006: Update Bionic Stack

[sophiewigmore]

Blocked

This issue is blocked on the completion of paketo-buildpacks/jammy-tiny-stack#1 as a functional example of how the new tooling and automation will work together. The bionic stacks should follow a very similar workflow set up to the Jammy Tiny stack.

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Now that Stacks RFC 0005 has been accepted, the modifications outlined in the RFC should be made to the Bionic stacks and/or related automation.

In order to roll changes out smoothly and avoid any changes needed down the road, this work should be completed once the jam create-stack command is readily available (Blocked on PR) and we can leverage it in our automation.

• Leverage the jam create-stack command in our automation
  • Modifications to Full/Base/Tiny stack build-and-test workflows, and the top level stacks repository test-create-stack workflow
  • Publish the generated images to both the -cnb and non-cnb tags, as well as the new location outlined in the RFC:

   paketobuildpacks/{phase}:{version}-{variant}
   paketobuildpacks/{phase}:{version}-{variant}-cnb
   paketobuildpacks/{phase}-bionic-{variant}:{version}

• Remove legacy create-stack code

• Create 3 new repositories: bionic-<variant>-stack, relocate code from <phase>-stack-release to the new repos

[sophiewigmore]

Tiny issue: paketo-buildpacks/bionic-tiny-stack#2
Base issue: paketo-buildpacks/bionic-base-stack#1
Full issue: paketo-buildpacks/bionic-full-stack#1

[sophiewigmore]

All related issues are complete!!