Fix confirmed-payouts query

Fixes this use case:
- two competing claims
- one merged and signed-off
-> GH paid comment shows wrong username in

resources/sql/queries.sql

@@ -315,6 +315,7 @@ WHERE
 p.issue_id = i.issue_id
 AND p.repo_id = i.repo_id
 AND r.repo_id = i.repo_id
+AND p.state = 1
 AND u.id = p.user_id
 AND i.payout_receipt IS NULL
 AND i.payout_hash IS NOT NULL;