Update macOS version in CI workflow from macos-13 to macos-15-intel (#636)

Author: slayoo

.github/workflows/mpi.yml

@@ -27,12 +27,12 @@ jobs:
   tests_setup:
     strategy:
       matrix:
-        platform: [macos-13, macos-14, ubuntu-latest]
+        platform: [macos-15-intel, macos-14, ubuntu-latest]
         mpi: [ 'mpich', 'openmpi', 'intelmpi']
         python-version: ["3.10"]
         exclude:
           # as of time of writing, mpi4py/setup-mpi does not support it
-          - platform: macos-13
+          - platform: macos-15-intel
             mpi: intelmpi
           - platform: macos-14
             mpi: intelmpi
@@ -42,13 +42,13 @@ jobs:
             mpi: intelmpi
 
           # https://github.com/Homebrew/homebrew-core/issues/26974
-          - platform: macos-13
+          - platform: macos-15-intel
             mpi: mpich
           - platform: macos-14
             mpi: mpich
 
           # HDF5_MPI expects arm architecture with python 3.12 on macos
-          - platform: macos-13
+          - platform: macos-15-intel
             python-version: '3.12'
 
     runs-on: ${{ matrix.platform }}
@@ -101,14 +101,14 @@ jobs:
     needs: [tests_setup]
     strategy:
       matrix:
-        platform: [macos-13, macos-14, ubuntu-latest]
+        platform: [macos-15-intel, macos-14, ubuntu-latest]
         mpi: [ 'mpich', 'openmpi', 'intelmpi']
         python-version: ["3.10"]
         disable-jit: [1, 0]
         mpi-np: [1, 2, 3]
         exclude:
           # as of time of writing, mpi4py/setup-mpi does not support it
-          - platform: macos-13
+          - platform: macos-15-intel
             mpi: intelmpi
           - platform: macos-14
             mpi: intelmpi
@@ -118,13 +118,13 @@ jobs:
             mpi: intelmpi
 
           # https://github.com/Homebrew/homebrew-core/issues/26974
-          - platform: macos-13
+          - platform: macos-15-intel
             mpi: mpich
           - platform: macos-14
             mpi: mpich
 
           # HDF5_MPI expects arm architecture with python 3.12 on macos
-          - platform: macos-13
+          - platform: macos-15-intel
             python-version: '3.12'
 
       fail-fast: false

.github/workflows/tests.yml

@@ -112,7 +112,7 @@ jobs:
     needs: [nojit_and_codecov]
     strategy:
       matrix:
-        platform: [ubuntu-latest, macos-13, macos-14, windows-latest]
+        platform: [ubuntu-latest, macos-15-intel, macos-14, windows-latest]
         python-version: ["3.10", "3.13"]
         exclude:
           - platform: macos-14
@@ -153,7 +153,7 @@ jobs:
     needs: [nojit_and_codecov]
     strategy:
       matrix:
-        platform: [ubuntu-latest, macos-13, macos-14, windows-latest]
+        platform: [ubuntu-latest, macos-15-intel, macos-14, windows-latest]
         python-version: ["3.10", "3.13"]
       fail-fast: false
     runs-on: ${{ matrix.platform }}