feat: expose summary statistics qc and locus breaker steps to hydra cli

[project-defiant]

✨ Context

This PR implements opentargets/issues#3398

🛠 What does this PR implement

• Expose summary_statistics_qc step to the hydra cli
• Updated documentation for new step

🙈 Missing

🚦 Before submitting

• Do these changes cover one single feature (one change at a time)?
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• Did you make sure to update the documentation with your changes?
• Did you make sure there is no commented out code in this PR?
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• Did you make sure the branch is up-to-date with the dev branch?
• Did you write any new necessary tests?
  manual test of the command poetry run gentropy
• Did you make sure the changes pass local tests (make test)?
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