Add empty pipeline/__init__.py

[israelmcmc]

So pipeline is detected as a module and included in the coverage

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.74%. Comparing base (ef2e3f2) to head (397b9ff).

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[israelmcmc]

Wrong location!