ci: drop macos-13 runner

sandydoo · sandydoo · commit 7e5978947b7e · 2025-11-18T13:10:54.000+01:00
This runner will be removed next month.
We now test x86_64-darwin on macos-15-intel.
That runner will be supported until fall of 2027.
diff --git a/.github/workflows/test-per-system.yml b/.github/workflows/test-per-system.yml
@@ -4,7 +4,7 @@ on:
   workflow_call:
     inputs:
       runs-on:
-        description: 'GitHub Actions runner to use (e.g., ubuntu-latest, macos-13)'
+        description: 'GitHub Actions runner to use (e.g., ubuntu-latest, macos-latest)'
         required: true
         type: string
       system:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -45,10 +45,6 @@ jobs:
           - runs-on: macos-15-intel
             system: x86_64-darwin
             oldest_installer_version: nix-2.18.6
-          # macos13 will be retired on 04/12/2025
-          - runs-on: macos-13
-            system: x86_64-darwin
-            oldest_installer_version: nix-2.8.0
     uses: ./.github/workflows/test-per-system.yml
     with:
       runs-on: ${{ matrix.runs-on }}
