jobs: clean up db backups after upload (#1319)

Author: dyc3

deploy/jobs/backup_pg.sh

@@ -31,3 +31,4 @@ chmod 0600 ~/.pgpass
 OUTPUT_FILE="ott-prod-$(date +%Y-%m-%d).sql.gz"
 pg_dumpall --no-password -d "$DATABASE_URL" | gzip --best > "$OUTPUT_FILE"
 ./rclone --progress --config ./rclone.conf --b2-chunk-size 64M --b2-upload-cutoff 100M --checkers 1 --transfers 1 copy "$OUTPUT_FILE" "b2:ott-backups/ott-prod"
+rm "$OUTPUT_FILE"