fix: parallelism and IP in the minimal tests

Author: Greg Lindahl

.github/workflows/ci.yaml

@@ -113,6 +113,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: true
+      max-parallel: 1
       matrix:
         include:
           - python-version: '3.9'
@@ -129,6 +130,10 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: Get Runner IP
+        run: |
+          echo "Runner IP: $(curl -s https://ipinfo.io/ip)"
+
       - name: Install setuptools on python 3.12+
         if: ${{ matrix.python-version >= '3.12' }}
         run: |