CI/CD in forgejo

adopted from https://forgejo.org/docs/v1.20/user/actions/

attempting to make artifacts in CI

jobs:
  upload-many:
    runs-on: docker
    steps:
    - run: mkdir -p artifacts

    - run: touch artifacts/ONE artifacts/TWO

    - uses: actions/upload-artifact@v3
      with:
        name: many-artifacts
        path: artifacts/