CI: update runner macos-14 → macos-15

Author: Puerling

.github/workflows/builds.yml

@@ -98,9 +98,9 @@ jobs:
           # this build cannot be configured currently
           # - os: ubuntu-24.04
           #   parallelisation: "cuda"
-          - os: macos-14
+          - os: macos-15
             parallelisation: ''
-          - os: macos-14
+          - os: macos-15
             parallelisation: 'openmp'
           - os: windows-2022
             parallelisation: ''
@@ -144,7 +144,7 @@ jobs:
 
       # Workaround, because the setup-python action doesn't set up the PATH correctly
       - name: Install LLVM and numpy (MacOS)
-        if: matrix.os == 'macos-14'
+        if: matrix.os == 'macos-15'
         shell: bash
         run: |
           brew update
@@ -160,12 +160,12 @@ jobs:
           choco upgrade llvm
 
       - uses: actions/setup-python@v5
-        if: matrix.os != 'macos-14'
+        if: matrix.os != 'macos-15'
         with:
           python-version: '3.x'
 
       - name: Install python packages
-        if: matrix.os != 'macos-14'
+        if: matrix.os != 'macos-15'
         run: pip install --user numpy
 
       - name: Create build folder
@@ -374,7 +374,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-22.04
-          - os: macos-14
+          - os: macos-15
     env:
       BUILD_TYPE: Debug
       CMAKE_FLAGS: >
@@ -421,7 +421,7 @@ jobs:
           - configuration: 'single-precision'
             os: ubuntu-24.04
           - configuration: 'single-precision'
-            os: macos-14
+            os: macos-15
           - configuration: 'pinning-and-defects'
             os: ubuntu-24.04
     env: