[19.1.x] Unified release process

[eps1lon]

Backports #36456 to allow releasing 19.1.x from CI

test plan

Test release from the head of releases/19.1.x

$ yarn --cwd scripts/release install --frozen-lockfile
$ GH_TOKEN=$(gh auth token) scripts/release/prepare-release-from-ci.js --skipTests -r latest --commit=268fd854d30531276bef776df12bcb67b1351cd4
$ scripts/release/publish.js --tag latest --dry
eslint-plugin-react-hooks 5.2.0 has already been published.
jest-react 0.16.0 has already been published.
react 19.1.7 has already been published.
react-art 19.1.7 has already been published.
react-dom 19.1.7 has already been published.
react-server-dom-webpack 19.1.7 has already been published.
react-server-dom-turbopack 19.1.7 has already been published.
react-server-dom-parcel 19.1.7 has already been published.
react-is 19.1.7 has already been published.
react-reconciler 0.32.0 has already been published.
react-refresh 0.17.0 has already been published.
react-test-renderer 19.1.7 has already been published.
use-subscription 1.11.0 has already been published.
use-sync-external-store 1.5.0 has already been published.
scheduler 0.26.0 has already been published.
$ scripts/release/publish.js --tag latest --dry --onlyPackages react
react 19.1.7 has already been published.