ci: run release step on python 3.10

hatch dropped support for Python 3.7 last year (pypa/hatch@323bb15)

.github/workflows/test.yaml

@@ -709,10 +709,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python 3.7
+      - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: 3.7
+          python-version: "3.10"
 
       - uses: actions/download-artifact@v4
         with: