[enrich] Fix refresh_identities for '*_multi_org_names' fields

[zhquan]

This code fixes when the refresh_identities method update *_multi_org_names fields.

Currently this field only check author_org_name field instead of *_multi_org_names.

Signed-off-by: Quan Zhou quan@bitergia.com

[coveralls]

Pull Request Test Coverage Report for Build 1631224430

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 183 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.2%) to 81.947%

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Files with Coverage Reduction	New Missed Lines	%
/home/runner/work/grimoirelab-elk/grimoirelab-elk/grimoire_elk/enriched/git.py	62	71.89%
/home/runner/work/grimoirelab-elk/grimoirelab-elk/grimoire_elk/enriched/enrich.py	121	72.85%
<!--	Total:	183		-->

Totals
Change from base Build 1627420603:	0.2%
Covered Lines:	8761
Relevant Lines:	10691

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💛 - Coveralls