Change MacOS runner from 13 to 15-intel (#5213)

Author: DavidMStraub

.github/workflows/run_periodic_tests.yml

@@ -30,7 +30,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, macos-13, macos-latest, windows-latest ]
+        os: [ ubuntu-latest, macos-15-intel, macos-latest, windows-latest ]
         python-version: ["3.10", "3.11", "3.12"]
     name: Tests (${{ matrix.os }} / Python ${{ matrix.python-version }})
 
@@ -48,7 +48,7 @@ jobs:
           sudo apt-get install libopenblas-dev texlive-latex-extra dvipng
 
       - name: Install macOS system dependencies
-        if: matrix.os == 'macos-13' || matrix.os == 'macos-latest'
+        if: matrix.os == 'macos-15-intel' || matrix.os == 'macos-latest'
         env:
           HOMEBREW_NO_INSTALL_CLEANUP: 1
           HOMEBREW_NO_AUTO_UPDATE: 1

.github/workflows/test_on_push.yml

@@ -48,7 +48,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-13, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-15-intel, macos-latest, windows-latest]
         python-version: ["3.10", "3.11", "3.12"]
     name: Tests (${{ matrix.os }} / Python ${{ matrix.python-version }})
 
@@ -74,7 +74,7 @@ jobs:
           sudo apt-get install libopenblas-dev texlive-latex-extra dvipng
 
       - name: Install macOS system dependencies
-        if: matrix.os == 'macos-13' || matrix.os == 'macos-latest'
+        if: matrix.os == 'macos-15-intel' || matrix.os == 'macos-latest'
         env:
           HOMEBREW_NO_INSTALL_CLEANUP: 1
           HOMEBREW_NO_AUTO_UPDATE: 1