[ci] replace macos-12 by macos-13 runner

Author: fangq

.github/workflows/run_test.yml

@@ -6,9 +6,9 @@ jobs:
   octave_test:
     name: Octave tests
     strategy:
-      # provided octave versions: ubuntu-20.04 = 5.2, ubuntu-22.04 = 6.4, macos-12 = 8.1, windows-2019 = 7.3
+      # provided octave versions: ubuntu-20.04 = 5.2, ubuntu-22.04 = 6.4, macos-13 = 8.1, windows-2019 = 7.3
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, macos-12, windows-2019]
+        os: [ubuntu-20.04, ubuntu-22.04, macos-13, windows-2019]
     runs-on: ${{ matrix.os }}
     defaults:
       run:
@@ -40,7 +40,7 @@ jobs:
     name: MATLAB test
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-12, windows-2019]
+        os: [ubuntu-20.04, macos-13, windows-2019]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout repo