✨ import global ci workflow

[fabianvf]

This will import the global CI workflow, which runs the end to end tests defined in https://github.com/konveyor/go-konveyor-tests (for now, it will be expanded to more suites as they become quick and stable enough). This helps to ensure that individual components aren't breaking the project as a whole, which should help to smooth out the release process.

[fabianvf]

we could also change the test-e2e job to this, since the global-ci will install minikube/tackle as part of its run:

  test-e2e:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Build and save image
        run: |
          make docker-build
          docker save -o /tmp/tackle2-hub.tar quay.io/konveyor/tackle2-hub:latest

      - name: Upload image as artifact
        uses: actions/upload-artifact@v3
        with:
          name: tackle2-hub
          path: /tmp/tackle2-hub.tar
          retention-days: 1

[aufi]

LGTM

[jortel]

@fabianvf Can you add a brief description about what this will do?