CI tests: clarify jobs

Author: jdavid

.github/workflows/tests.yml

@@ -7,7 +7,7 @@ on:
     - '**.rst'
 
 jobs:
-  x86_64:
+  linux-x86_64:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -18,8 +18,6 @@ jobs:
           python-version: '3.13'
         - os: ubuntu-24.04
           python-version: 'pypy3.10'
-        - os: macos-latest
-          python-version: '3.10'
 
     steps:
     - name: Checkout pygit2
@@ -31,18 +29,11 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Linux
-      if: runner.os == 'Linux'
       run: |
         sudo apt install tinyproxy
         LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 /bin/sh build.sh test
 
-    - name: macOS
-      if: runner.os == 'macOS'
-      run: |
-        export OPENSSL_PREFIX=`brew --prefix [email protected]`
-        LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 /bin/sh build.sh test
-
-  aarch64:
+  linux-arm64:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
@@ -59,7 +50,7 @@ jobs:
         run: |
           LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 /bin/sh build.sh test
 
-  s390x:
+  linux-s390x:
     runs-on: ubuntu-24.04
     if: github.ref == 'refs/heads/master'
     steps:
@@ -77,3 +68,19 @@ jobs:
         run: |
           LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 /bin/sh build.sh test
       continue-on-error: true # Tests are expected to fail, see issue #812
+
+  macos-arm64:
+    runs-on: macos-latest
+    steps:
+    - name: Checkout pygit2
+      uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+
+    - name: macOS
+      run: |
+        export OPENSSL_PREFIX=`brew --prefix [email protected]`
+        LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 /bin/sh build.sh test