Release: migrate release process to release-it

*Authors*
- Checking and updating authors has been migrated
  to a custom script in the repo

*Changelog*
- changelogplease is no longer maintained
- generate changelog in markdown for GitHub releases
- generate changelog in HTML for blog posts
- generate contributors list in HTML for blog posts

*dist*
- clone dist repo, copy files, and commit/push
- commit tag with dist files on main branch;
  remove dist files from main branch after release

*cdn*
- clone cdn repo, copy files, and commit/push
- create versioned and unversioned copies in cdn/
- generate md5 sums and archives for Google and MSFT

*build*
- implement reproducible builds and verify release builds
  * uses the last modified date for the latest commit
  * See https://reproducible-builds.org/
- the verify workflow also ensures all files were
  properly published to the CDN and npm

*docs*
- the new release workflow is documented at build/release/README.md

*verify*
- use the last modified date of the commit before the tag
- use versioned filenames when checking map files on the CDN
- skip factory and package.json files when verifying CDN

*misc*
- now that we don't need the jquery-release script and
  now that we no longer need to build on Node 10, we can
  use ESM in all files in the build folder
- limit certain workflows to the main repo (not forks)
- version has been set to the previously released version 3.7.1,
  as release-it expects
- release-it added the `preReleaseBase` option and we
  now always set it to `1` in the npm script. This is
  a noop for stable releases.
- include post-release script to be run manually after a release,
  with further steps that should be verified manually

Ref jquery/jquery-release#114
Closes gh-5522

1 files changed, 37 insertions, 0 deletions

diff --git a/.github/workflows/verify-release.yml b/.github/workflows/verify-release.yml
new file mode 100644
index 000000000..1c1b191e4
--- /dev/null
+++ b/.github/workflows/verify-release.yml
@@ -0,0 +1,37 @@
+name: Reproducible Builds
+on:
+  push:
+    # On tags
+    tags:
+      - '*'
+  # Or manually
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to verify (>= 4.0.0-rc.1)'
+        required: false
+
+
+jobs:
+  run:
+    name: Verify release
+    runs-on: ubuntu-latest
+    # skip on forks
+    if: ${{ github.repository == 'jquery/jquery' }}
+    env:
+      NODE_VERSION: 20.x
+    steps:
+      - name: Checkout
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@1e60f620b9541d16bece96c5465dc8ee9832be0b # v4.0.3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install dependencies
+        run: npm ci
+
+      - run: npm run release:verify
+        env:
+          VERSION: ${{ github.event.inputs.version || github.ref_name }}