Maintenance: convert the scripts in `.github/scripts` to ESM

[svozza]

Summary

The scripts under .github/scripts are CommonJS, pinned by a local package.json with "type": "commonjs", while every package in the repo and the root package.json are ESM. list_workspaces.js (#5638) is written as ESM and cannot run until the directory is converted. The remaining three JavaScript scripts should be converted at the same time so the directory has one module system:

• release_patch_package_json.js, run as node …/release_patch_package_json.js . from each package's prepack script
• post_release.js, loaded with require() inside an actions/github-script step in post-release.yml
• report_e2e_sweep.js, loaded with require() in two actions/github-script steps in sweep-stale-e2e-stacks.yml

Why is this needed?

Two module systems in one small directory means two sets of idioms (require/module.exports/__dirname versus import/export/import.meta) and a per-directory package.json whose only job is to override the root. Converting removes that override, and #5638 depends on it.

Which area does this relate to?

Automation

Solution

1. Flip .github/scripts/package.json to "type": "module". File names stay .js, so the fifteen prepack entries pointing at the release patch script are untouched.
2. release_patch_package_json.js: replace the two require lines with import; nothing else changes.
3. post_release.js and report_e2e_sweep.js: replace module.exports with export default and named exports. actions/github-script evaluates its snippet as CommonJS, so the three call sites must switch from require('./.github/scripts/…') to await import() with an absolute or file:// path built from github.workspace.
4. Verify by triggering the stale-stack sweep workflow manually before the next release, since post-release.yml only runs after a release and a bad import path is only observable in a workflow run.

Acknowledgment

• This request meets Powertools for AWS Lambda (TypeScript) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Python, Java, and .NET

Future readers

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