feat: allow up to 5 joins per tick

This should make it easier for players to get in at server start.
Generally 8 bots try to join at the same time, making the login process take a long time.

config/paper-global.yml

@@ -87,7 +87,7 @@ misc:
   fix-entity-position-desync: true
   lag-compensate-block-breaking: true
   load-permissions-yml-before-plugins: true
-  max-joins-per-tick: 3
+  max-joins-per-tick: 5
   region-file-cache-size: 256
   strict-advancement-dimension-check: false
   use-alternative-luck-formula: false