Switch to running OSX intel tests on 3.9

Author: jeromekelleher

.github/workflows/ci.yml

@@ -27,10 +27,10 @@ jobs:
         python-version: ["3.9", "3.10", "3.11"]
         exclude:
           # Just run macos tests on one Python version
-          - os: macos-13
-            python-version: "3.9"
           - os: macos-13
             python-version: "3.10"
+          - os: macos-13
+            python-version: "3.11"
           - os: macos-14
             python-version: "3.9"
           - os: macos-14
@@ -45,6 +45,9 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install '.[dev]'
+      - name: Run basic vcf2zarr example
+        run: |
+          python -m bio2zarr vcf2zarr convert tests/data/vcf/sample.vcf.gz sample.vcz -f
       - name: Run tests
         run: |
           pytest --cov=bio2zarr
@@ -56,9 +59,6 @@ jobs:
           # This is a quick workaround for doing a proper "parallel" setup:
           # https://github.com/coverallsapp/github-action
           fail-on-error: false
-      - name: Run basic vcf2zarr example
-        run: |
-          python -m bio2zarr vcf2zarr convert tests/data/vcf/sample.vcf.gz sample.vcz -f
 
   packaging:
     name: Packaging