CiviCRM DB Error: syntax error during upgrade in Wordpress
My theory is you have a table called 'civicrm_group_contact_05Feb20-2049' in the database, maybe a backup whilst you were investigating an issue or something? If you drop this table prior to commencing the upgrade you'll probably have better luck.
Note that the reason its an issue is that CiviCRM will add audit log triggers to any table prefixed with 'civicrm'. So its trying to add/drop a trigger from that table and falling over. I'm not 100% sure on the reason, looks like trigger names dont support hyphens perhaps. In this case dropping or renaming the table (prefixing it with bkp_ or something) will stop the trigger drop/create failing.