Bumping up migration number to 111 (#24341)

PR https://github.com/mattermost/mattermost/pull/24039 was reverted
which left an erroneous migration 110. So to workaround this,
we create a new migration with number 111.

```release-note
NONE
```

server/channels/db/migrations/postgres/000111_update_vacuuming.down.sql

@@ -0,0 +1,4 @@
+alter table posts set (autovacuum_vacuum_scale_factor = 0.2, autovacuum_analyze_scale_factor = 0.1);
+alter table threadmemberships set (autovacuum_vacuum_scale_factor = 0.2, autovacuum_analyze_scale_factor = 0.1);
+alter table fileinfo set (autovacuum_vacuum_scale_factor = 0.2, autovacuum_analyze_scale_factor = 0.1);
+alter table preferences set (autovacuum_vacuum_scale_factor = 0.2, autovacuum_analyze_scale_factor = 0.1);