chore: add marcelstoer to the FP approvers list (#7771)

Author: marcelstoer

.github/workflows/false-positive-approvals.yml

@@ -18,6 +18,7 @@ jobs:
       (github.event.comment.user.login == 'jeremylong' ||
       github.event.comment.user.login == 'aikebah' || 
       github.event.comment.user.login == 'nhumblot' ||
+      github.event.comment.user.login == 'marcelstoer' ||
       github.event.comment.user.login == 'chadlwilson') }}
     runs-on: ubuntu-latest
     steps: