Replace macos-13 with macos-15-intel (#3356)

> The macOS 13 Ventura based runner images will begin deprecation on September 22nd and will be fully unsupported by December 4th for GitHub and ADO.

https://github.com/actions/runner-images/issues/13046

Signed-off-by: Edgar Ramírez Mondragón <edgarrm358@gmail.com>

.github/workflows/modified_scripts_build.yml

@@ -37,7 +37,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
-        os: ["macos-13", "macos-14", "macos-15"]
+        os: ["macos-14", "macos-15", "macos-15-intel"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v5
@@ -98,7 +98,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions_cpython_only)}}
-        os: ["macos-13", "macos-14", "macos-15"]
+        os: ["macos-14", "macos-15", "macos-15-intel"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v5

.github/workflows/pyenv_tests.yml

@@ -12,8 +12,8 @@ jobs:
         os:
           - ubuntu-24.04
           - ubuntu-22.04
+          - macos-15-intel
           - macos-14
-          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v5