Fix CI ASV check by allowing any py 3.9.* for ubuntu-latest (#1604)

Author: kandersolar

.github/workflows/asv_check.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Install Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.9.7'
+          python-version: '3.9'
 
       - name: Install asv
         run: pip install asv==0.4.2