Flake8 on (a good fraction of) Phys/CommonParticlesArchive
Follow-up from MR !1732 (merged) and related MRs.
Yet more work towards DPA task https://gitlab.cern.ch/lhcb-dpa/project/-/issues/246.
Follow-up from MR !1732 (merged) and related MRs.
Yet more work towards DPA task https://gitlab.cern.ch/lhcb-dpa/project/-/issues/246.