chore: Sync BEP information with spec CITATION.cff

[effigies]

Down to 4 missing citations:

󰅂 uv run tools/ci/validate_people.py | grep '^0|NOT|no email' | grep '^ ' -B1
    13-	032 Microelectrode electrophysiology
    14:	      no email in specification/CITATION.cff.
    15:	    NOT FOUND Andrew Davison
--
    28-	045 Peripheral Physiological Recordings
    29:	    NOT FOUND Mary Miedema
    30:	    NOT FOUND Stefano Moia
    31:	    NOT FOUND Sourav Kulkarni

I believe these folks are:

@apdavison @m-miedema @smoia @Sourav-Kulkarni

Also @lzehl is missing an email in the main spec CITATION.cff, but I relaxed the check to only be an error if there are no BEP leads with emails.