Revert accidental force push to main. (#2596)

* Revert "Tweaks to slack notifs."

This reverts commit 0d475ef.

* Revert "Add slack notifications."

This reverts commit 9551a53.

* Revert "Use annotated tags."

This reverts commit 5cd738c.

* Revert "Log archive sizes."

This reverts commit 3ebd804.

* Revert "Fix typo."

This reverts commit 47fda9a.

* Revert "Add more useful display name to install preset."

This reverts commit cdd367e.

* Revert "Add overview doc for release workflows."

This reverts commit a6af3bf.

* Revert "Document workflow ref requirements/usage."

This reverts commit 448da79.

* Revert "Cleanup version handling in create-new."

This reverts commit 75c2500.

* Revert "Upload source packages, too."

This reverts commit dde8e2e.

* Revert "Verify the repo version in release-finalize."

This reverts commit c05951a.

* Revert "Simply release branch creation."

This reverts commit 4c7eacb.

* Revert "Refactor for consistency."

This reverts commit ed46ca8.

* Revert "Infer version in RC workflow from repo/git state."

This reverts commit ea07539.

* Revert "Add json file with version info that we can parse in CI."

This reverts commit 0beede5.

* Revert "Release workflow updates:"

This reverts commit 2873882.

* Revert "Add `install` preset."

This reverts commit 14d95a4.

* Revert "Add reusable workflow for updating version in branch with a PR"

This reverts commit 70a2872.

* Revert "Add release automation workflows."

This reverts commit 43eb66a.