Fix remaining Ruff errors with GPT-5.6 Sol high

https://gist.github.com/simonw/6da7906a9fea6e90da131c21a9055199

tests/test_plugins.py

@@ -1,4 +1,5 @@
 import importlib
+import sqlite3
 import sys
 
 import click
@@ -13,7 +14,7 @@ def _supports_pragma_function_list():
     try:
         db.execute("select * from pragma_function_list()")
         return True
-    except Exception:
+    except sqlite3.DatabaseError:
         return False
     finally:
         db.close()