CI: update macOS

.github/workflows/build.yaml

@@ -15,7 +15,7 @@ permissions:
 jobs:
   clang-format-check:
     name: Clang Format Check
-    runs-on: macos-15
+    runs-on: macos-26
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -51,9 +51,10 @@ jobs:
       fail-fast: false
       matrix:
         platform:
-          - macos-13
           - macos-14
           - macos-15
+          - macos-15-intel
+          - macos-26
     runs-on: ${{ matrix.platform }}
     timeout-minutes: 10
     steps:

.github/workflows/lima.yaml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         platform:
-          - macos-13  # Intel
+          - macos-15-intel
     runs-on: ${{ matrix.platform }}
     # Typically takes 8 minutes. If a step get stuck for many mintues it is
     # unlikely to succeed.

.github/workflows/qemu.yaml

@@ -20,9 +20,10 @@ jobs:
       matrix:
         # We run on standard arm64 runners since this test is very quick.
         platform:
-          - macos-13
           - macos-14
           - macos-15
+          - macos-15-intel
+          - macos-26
     runs-on: ${{ matrix.platform }}
     timeout-minutes: 10
     steps:

.github/workflows/release.yaml

@@ -19,7 +19,7 @@ permissions:
 jobs:
   release:
     name: Release
-    runs-on: macos-15
+    runs-on: macos-26
     # The maximum access is "read" for PRs from public forked repos
     # https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token
     permissions: