Set up Python after checkout; minor YAML formatting

Move the "Set up Python" step in reusable-check-python-package-versions.yaml to run after actions/checkout so the .python-version file is available to actions/setup-python and the subsequent "uv sync" can see repository packages. Also add a small whitespace/formatting tweak in test-schema.yaml (blank line between checkout and Go setup) for readability.

Signed-off-by: John McCall <john@overturemaps.org>

Author: lowlydba

.github/workflows/reusable-check-python-package-versions.yaml

@@ -66,16 +66,16 @@ jobs:
         with:
           version: latest
 
-      - name: Set up Python
-        uses: actions/setup-python@v6
-        with:
-          python-version-file: .python-version
-
       - name: Check out code before change
         uses: actions/checkout@v6
         with:
           ref: ${{ inputs.before_commit }}
 
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version-file: .python-version
+
       - name: Sync code before change to make packages visible to Python
         run: uv sync --all-packages
 

.github/workflows/test-schema.yaml

@@ -15,6 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
+
       - name: Set up Go
         uses: actions/setup-go@v6
         with: