fix(ci): fix wheel glob expansion in Python CI install step

The glob pattern in `pip install target/wheels/ggsql-*.whl'[test]'`
was not expanding because the shell treated `[test]` as a character
class, preventing any file from matching. Use `ls` to expand the glob
into a variable first.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cpsievert

.github/workflows/python.yml

@@ -47,7 +47,9 @@ jobs:
 
       - name: Install wheel and test dependencies
         shell: bash
-        run: pip install target/wheels/ggsql-*.whl'[test]'
+        run: |
+          WHEEL=$(ls target/wheels/ggsql-*.whl)
+          pip install "${WHEEL}[test]"
 
       - name: Run tests
         shell: bash