added github-handle variable to Seymour in Lucky Parking Project Team (#8424)

Great work on this issue @bragelbytes and thank you @santiseccovidal and @izzy-me for your reviews. I went ahead and checked off those action items in the original issue's checklist that @DDVVPP mentioned but for future issues, be sure to check those Action Items off as you complete them @bragelbytes. Thanks again!

Author: bragelbytes

_projects/lucky-parking.md

@@ -33,6 +33,7 @@ leadership:
       github: 'https://github.com/mklmrgn'
     picture: https://avatars.githubusercontent.com/mklmrgn
   - name: Seymour Liao
+    github-handle:
     role: Data Scientist
     links:
       slack: 'https://hackforla.slack.com/team/U018XPTSTC6'