Add next_upgrade to labs (#541)

* Add next_upgrade to labs

Adds next_upgrade to vanilla lab into bob-lab-2.
Adds next_upgrade to bob-burner lab into vanilla lab.

* Updating version number and changelog

---------

Co-authored-by: KiwiHawk <59639+KiwiHawk@users.noreply.github.com>

Author: Qatavin

bobtech/changelog.txt

@@ -1,4 +1,9 @@
 ---------------------------------------------------------------------------------------------------
+Version: 2.0.6
+Date: ???
+  Bugfixes:
+    - Made it easier to upgrade labs #541
+---------------------------------------------------------------------------------------------------
 Version: 2.0.5
 Date: 18. 01. 2026
   Bugfixes:

bobtech/info.json

@@ -1,6 +1,6 @@
 {
   "name": "bobtech",
-  "version": "2.0.5",
+  "version": "2.0.6",
   "factorio_version": "2.0",
   "title": "Bob's Technology mod",
   "author": "Bobingabout",

bobtech/prototypes/entity/entity.lua

@@ -149,6 +149,8 @@ data:extend({
   },
 })
 
+data.raw["lab"]["lab"].next_upgrade = "bob-lab-2"
+
 if feature_flags["freezing"] and mods["space-age"] then
   data.raw.lab["bob-lab-2"].heating_energy = "100kW"
   data.raw.lab["bob-lab-2"].frozen_patch = {
@@ -296,6 +298,7 @@ if settings.startup["bobmods-burnerphase"].value == true then
         },
       },
       fast_replaceable_group = "lab",
+      next_upgrade = "lab",
     },
   })