revert

Author: StephenHodgson

.github/workflows/build_macos.yaml

@@ -25,15 +25,15 @@ on:
         required: true
 
 env:
-  pythonVersion: '3.9'
+  pythonVersion: '3.7'
   artifactRetentionDays: 2
   assetPackageArtifactName: "AssetPackage_macOS"
   tarballPackageArtifactName: "TarballPackage_macOS"
 
 jobs:
   build_desktop:
     name: build-macOS-unity${{ inputs.unity_version}}
-    runs-on: macos-15
+    runs-on: macos-13
     strategy:
       fail-fast: false
 

.github/workflows/test.yaml

@@ -107,7 +107,7 @@ jobs:
 
   test_on_macos:
     name: test-macOS-unity${{ needs.check_and_prepare.outputs.unity_version }}
-    runs-on: macos-15
+    runs-on: macos-13
     needs: [check_and_prepare]
     strategy:
       fail-fast: false