[APERO] mege astrom pending into main list

[njcuk9999]

Need to merge pending into main list for the astrometric database

• [x] Check for duplicates between main and pending
• [x] Merge non-duplicates
• [x] Replace duplicates
• [x] Run script to verify for duplicates

[njcuk9999]

• [ ] merge "fix" code into apero astrometrics (currently in apero-utils/general/apero_astrometrics/merge_duplicate_rows.py)