_/.github/workflows/update-latest-release.yml

name: update-latest-release
on:
  workflow_dispatch:
jobs:
  main:
    runs-on: ubuntu-latest
    steps:
      - run: echo ok > hello.txt
      - uses: actions/github-script@v6
        with:
          script: |
            const { data: release } = await github.rest.repos.getLatestRelease(context.repo);

            const name = "hello.txt";
            const data = await require("node:fs").promises.readFile(name);

            await github.rest.repos.uploadReleaseAsset({
              ...context.repo,
              release_id: release.id,
              name,
              data,
            });