Needs at least Datasette 0.32

https://datasette.readthedocs.io/en/latest/changelog.html#v0-32

setup.py

@@ -23,7 +23,7 @@ def get_long_description():
     version=VERSION,
     packages=["datasette_template_sql"],
     entry_points={"datasette": ["template-sql = datasette_template_sql"]},
-    install_requires=["datasette"],
+    install_requires=["datasette~=0.32"],
     extras_require={"test": ["pytest", "asgiref", "sqlite-utils"]},
     tests_require=["datasette-template-sql[test]"],
 )