fix: IncompatibleClassChangeError on Dynamic Title Update pre MC 1.21

[devnatan]

In MC 1.21 org.bukkit.inventory.InventoryView became a interface (previously a class) so Dynamic Title Update that interacts with it directly throws a IncompatibleClassChangeError on pre MC 1.21 servers.

The workaround for that is using MC 1.20.6 dependency as we do not use any MC 1.21 specific API yet.

How to reproduce: try to use context.updateTitle using latest Inventory Framework version in a server that is not MC 1.21.

Stack trace:

[18:45:19 WARN]: java.lang.IncompatibleClassChangeError: Found class org.bukkit.inventory.InventoryView, but interface was expected
[18:45:19 WARN]:        at me.devnatan.inventoryframework.runtime.thirdparty.InventoryUpdate.updateInventory(InventoryUpdate.java:146)
[18:45:19 WARN]:        at me.devnatan.inventoryframework.BukkitViewContainer.changeTitle(BukkitViewContainer.java:148)
[18:45:19 WARN]:        at me.devnatan.inventoryframework.BukkitViewContainer.changeTitle(BukkitViewContainer.java:144)