Attempt Mac builder fix

Author: Motobug

.github/workflows/ci.yml

@@ -218,7 +218,7 @@ jobs:
       uses: actions/checkout@v4
       with:
         repository: Project-Plus-Development-Team/Project-Plus-Dolphin
-        ref: master
+        ref: dolphin-emu-release-prep-2509
 
     - name: Checkout Submodules
       if: steps.cache-submodules.outputs.cache-hit != 'true'

Externals/pugixml/CMakeLists.txt

@@ -1,6 +1,6 @@
 project(pugixml)
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 2.8.12...3.5)
 
 option(BUILD_SHARED_LIBS "Build shared instead of static library" OFF)