move to macos-13

.github/workflows/tests.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, windows-2019, macos-12]
+        os: [ubuntu-20.04, ubuntu-22.04, windows-2019, macos-13]
         # Python 3.8 is what we currently support for running cohortextractor
         # locally, and 3.9 is what we required for databuilder so we need to make
         # sure we can run with those
@@ -50,19 +50,19 @@ jobs:
           cache-dependency-path: requirements.*.txt
 
       - name: Set up default Python 3.8 for MacOS
-        if: ${{ matrix.os == 'macos-12' && matrix.python != '3.8' }}
+        if: ${{ matrix.os == 'macos-13' && matrix.python != '3.8' }}
         uses: actions/setup-python@v5
         with:
           python-version: 3.8
           cache: "pip"
           cache-dependency-path: requirements.*.txt
 
       - name: install Docker/Colima on MacOS
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-13' }}
         run: brew install docker
 
       - name: start Colima on MacOS
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-13' }}
         run: colima start
 
       - uses: extractions/setup-just@69d82fb0233557aec017ef13706851d0694e0f1d
@@ -81,7 +81,7 @@ jobs:
           just test-no-docker -vvv
 
       - name: Run actual tests on macos
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-13' }}
         run: just test-no-docker -vvv
 
   test-package-build: