package/ci: use newer Mac VM.

package/ci/circleci.yml

@@ -15,10 +15,12 @@ executors:
   ubuntu-18_04:
     docker:
     - image: ubuntu:bionic-20220427
-  # Anything below 12.5.1 is deprecated as of August 2023
-  xcode-12_5:
+  # Anything below 13.4.1 (and all x86 variants) are deprecated as of June 28th
+  # 2024
+  xcode-13_4:
     macos:
-      xcode: 12.5.1
+      xcode: 13.4.1
+    resource_class: macos.m1.medium.gen1
 
 commands:
   install-base-linux:
@@ -316,7 +318,7 @@ jobs:
     - lcov
 
   macos-gl:
-    executor: xcode-12_5
+    executor: xcode-13_4
     environment:
       CMAKE_CXX_FLAGS: --coverage
       PLATFORM_GL_API: CGL
@@ -329,7 +331,7 @@ jobs:
     - lcov
 
   macos-gles3:
-    executor: xcode-12_5
+    executor: xcode-13_4
     environment:
       CMAKE_CXX_FLAGS: --coverage
       PLATFORM_GL_API: EGL
@@ -346,7 +348,7 @@ jobs:
     - lcov
 
   macos-static:
-    executor: xcode-12_5
+    executor: xcode-13_4
     environment:
       # STUPID yml interprets unquoted ON as a boolean
       BUILD_STATIC: "ON"