8343923: GHA: Switch to Xcode 15 on MacOS AArch64 runners

Backport-of: 4c5bc5f2f091ae861d5329cdae42fe7fa295544b

.github/workflows/main.yml

@@ -237,7 +237,7 @@ jobs:
     with:
       platform: macos-aarch64
       runs-on: 'macos-14'
-      xcode-toolset-version: '14.3.1'
+      xcode-toolset-version: '15.4'
       configure-arguments: ${{ github.event.inputs.configure-arguments }}
       make-arguments: ${{ github.event.inputs.make-arguments }}
     if: needs.select.outputs.macos-aarch64 == 'true'
@@ -291,6 +291,7 @@ jobs:
       platform: macos-x64
       bootjdk-platform: macos-x64
       runs-on: macos-13
+      xcode-toolset-version: '14.3.1'
 
   test-macos-aarch64:
     name: macos-aarch64
@@ -301,6 +302,7 @@ jobs:
       platform: macos-aarch64
       bootjdk-platform: macos-aarch64
       runs-on: macos-14
+      xcode-toolset-version: '15.4'
 
   test-windows-x64:
     name: windows-x64

.github/workflows/test.yml

@@ -37,6 +37,9 @@ on:
       runs-on:
         required: true
         type: string
+      xcode-toolset-version:
+        required: false
+        type: string
 
 env:
   # These are needed to make the MSYS2 bash work properly
@@ -147,7 +150,7 @@ jobs:
         run: |
           # On macOS we need to install some dependencies for testing
           brew install make
-          sudo xcode-select --switch /Applications/Xcode_14.3.1.app/Contents/Developer
+          sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-toolset-version }}.app/Contents/Developer
           # This will make GNU make available as 'make' and not only as 'gmake'
           echo '/usr/local/opt/make/libexec/gnubin' >> $GITHUB_PATH
         if: runner.os == 'macOS'