Update Data Sources (#595)

Author: jmertic

_data/tacmembers.csv

@@ -1,7 +1,7 @@
 Full Name,Account Name: Account Name,Appointed By,Voting Status,Special Role,Title,HeadshotURL
 Andrea Orth,State Farm Mutual Automobile Insurance Company,Vote of TSC Committee,Voting Rep,None,Scrum Master,https://avatars0.githubusercontent.com/u/61636929?v=4
 Giancarlo Frix,Rocket Software,Membership Entitlement,Voting Rep,None,Senior Software Developer,https://platform-logos-myprofile-api-prod.s3.us-east-2.amazonaws.com/gfrix.png?v=1691075442605
-Gregory MacKinnon,Broadcom Corporation,Membership Entitlement,Voting Rep,None,Distinguished Engineer,https://platform-logos-myprofile-api-prod.s3.us-east-2.amazonaws.com/ferncrusher.png?v=1691074128315
+Gregory MacKinnon,Broadcom Corporation,Membership Entitlement,Voting Rep,None,Distinguished Engineer,https://avatars.githubusercontent.com/u/35381000?v=4
 Joe Bostian,International Business Machines Corporation,Membership Entitlement,Voting Rep,None,Open Source and Analytics Architect,https://platform-logos-myprofile-api-prod.s3.us-east-2.amazonaws.com/jbostian.1653317076249.png
 Lauren Valenti,Broadcom Corporation,Vote of TSC Committee,Voting Rep,None,Head of Mainframe Education and Customer Engagement,https://avatars.githubusercontent.com/u/74365281?v=4
 Nikolay Gueorguiev,SUSE LLC,Membership Entitlement,Voting Rep,None,IBM Mainframe Consultant,https://platform-logos-myprofile-api-prod.s3.us-east-2.amazonaws.com/ngueorguiev.png?v=1693570418067