update macOS version in CI workflows to macos-15-intel (#366)

.github/workflows/build-python-packages.yml

@@ -20,7 +20,7 @@ on:
       PLATFORMS:
         description: 'Platforms for execution in "os" or "os_arch" format (arch is "x64" by default)'
         required: true
-        default: 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13_x64,macos-14_arm64,windows-2022_x64,windows-2022_x86,windows-11_arm64'
+        default: 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-15-intel_x64,macos-14_arm64,windows-2022_x64,windows-2022_x86,windows-11_arm64'
   pull_request:
     paths-ignore:
     - 'versions-manifest.json'
@@ -44,7 +44,7 @@ jobs:
       - name: Generate execution matrix
         id: generate-matrix
         run: |
-          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13,macos-14_arm64,windows-2022_x64,windows-2022_x86,windows-11_arm64' }}".Split(",").Trim()
+          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-15-intel,macos-14_arm64,windows-2022_x64,windows-2022_x86,windows-11_arm64' }}".Split(",").Trim()
           [String[]]$buildModes = "${{ inputs.threading_build_modes || 'default' }}".Split(",").Trim()
           $matrix = @()
           
@@ -89,11 +89,7 @@ jobs:
         uses: actions/checkout@v5
         with:
           submodules: true
-
-      - name: Adding Symlink
-        if: matrix.os == 'macos-13'
-        run: ln -sf /usr/local/opt/tcl-tk@8 /usr/local/opt/tcl-tk
-
+      
       - name: Build Python ${{ env.VERSION }}
         run: |
           ./builders/build-python.ps1 -Version $env:VERSION `

.github/workflows/releases-validation.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-13]
+        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-15-intel]
         python: [3.9.13, 3.10.11, 3.11.8, 3.12.7, 3.13.0]
     steps:
     - name: setup-python ${{ matrix.python }}

.github/workflows/test-python-version.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-13] 
+        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-15-intel] 
     steps:
     - name: Setup Python ${{ github.event.inputs.version }}
       uses: actions/setup-python@main