Support cipd package provenance.

This change separates producing the cipd zip file and registering it,
such that its provenance can be reported along with the sha256 digest.

Stop setting the major version tag as it isn't useful.

Update the SDK constraint to the latest 3.2.0 release and dart format
the sources.

Bug: b/297175436
Change-Id: I3a747d5289b3a9187a938f1289dbb2c16d208a33
Reviewed-on: https://dart-internal-review.googlesource.com/c/deps/+/6321
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: Jonas Termansen <sortie@google.com>
15 files changed
tree: 39a2dcb4967f8a0977ad0b5f5d8bb57fe0961fea
  1. bin/
  2. lib/
  3. test/
  4. .gitignore
  5. analysis_options.yaml
  6. CHANGELOG.md
  7. OWNERS
  8. pubspec.lock
  9. pubspec.yaml
  10. README.md
README.md

Tools that create packages needed by the Dart SDK.