set Xcode 12.4

Author: 3a4oT

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
     name: Build from SPM manifest
     runs-on: macOS-latest
     env: 
-      DEVELOPER_DIR: /Applications/Xcode_12.2.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_12.4.app/Contents/Developer
     strategy:
       matrix:
         destination: ["platform=iOS Simulator,name=iPhone 12 Pro", "platform=macOS,variant=Mac Catalyst", "platform=tvOS Simulator,name=Apple TV 4k"]
@@ -61,7 +61,7 @@ jobs:
     name: Build example project to verify Xcode's SPM integration
     runs-on: macOS-latest
     env: 
-      DEVELOPER_DIR: /Applications/Xcode_12.2.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_12.4.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v2