chore: add dependency version changes

Author: SychO9

docs/extend/update-2_0.md

@@ -47,6 +47,13 @@ fl upgrade 2.0
 
 ## Frontend
 
+### Dependencies
+
+##### <span class="breaking">Breaking</span>
+In `package.json`:
+* Set `flarum-webpack-config` to `^3.0.0`.
+* Set `flarum-tsconfig` to `^2.0.0`.
+
 ### Mithril 2.2
 
 ##### <span class="breaking">Breaking</span>
@@ -164,6 +171,14 @@ There have been many changes to the core frontend codebase, including renamed or
 
 ### Dependencies
 
+#### Main packages
+
+##### <span class="breaking">Breaking</span>
+In `composer.json`:
+* Set any `flarum/` package requirement to `^2.0.0`.
+* If you have a `php` requirement, make sure it is not below `^8.2`.
+* If you have `blomstra/gdpr` as a requirement, change it to `"flarum/gdpr": "^2.0.0"`.
+
 #### Carbon 3
 
 ##### <span class="breaking">Breaking</span>