Switch `update-compile-extensions` back to using ci docker image
Switch `update-compile-extensions` back to using ci docker image

- compile-extensions now longer needs a specific ruby version and the
  roofts image does not have docker baked in

[#115735397]

Signed-off-by: Kelly Gerritz <663deb03f35468a434b9f77b774bb538216028bf@gmail.com>

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci