8340671: GHA: Bump macOS and Xcode versions to macos-12 and XCode 13.4.1

Reviewed-by: sgehwolf

.github/workflows/build-macos.yml

@@ -55,7 +55,7 @@ on:
 jobs:
   build-macos:
     name: build
-    runs-on: macos-13
+    runs-on: macos-12
 
     strategy:
       fail-fast: false

.github/workflows/main.yml

@@ -223,7 +223,7 @@ jobs:
     uses: ./.github/workflows/build-macos.yml
     with:
       platform: macos-x64
-      xcode-toolset-version: '14.3.1'
+      xcode-toolset-version: '13.4.1'
       configure-arguments: ${{ github.event.inputs.configure-arguments }}
       make-arguments: ${{ github.event.inputs.make-arguments }}
     if: needs.select.outputs.macos-x64 == 'true'
@@ -234,7 +234,7 @@ jobs:
     uses: ./.github/workflows/build-macos.yml
     with:
       platform: macos-aarch64
-      xcode-toolset-version: '14.3.1'
+      xcode-toolset-version: '13.4.1'
       extra-conf-options: '--openjdk-target=aarch64-apple-darwin'
       configure-arguments: ${{ github.event.inputs.configure-arguments }}
       make-arguments: ${{ github.event.inputs.make-arguments }}
@@ -298,7 +298,7 @@ jobs:
     with:
       platform: macos-x64
       bootjdk-platform: macos-x64
-      runs-on: macos-13
+      runs-on: macos-12
 
   test-windows-x64:
     name: windows-x64

.github/workflows/test.yml

@@ -127,7 +127,7 @@ 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_13.4.1.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'