Fix version check for sqlite drop column support.

Originally it was set to 3.25, but that is only when RENAME column was
added. DROP column was not added until 3.35.

Fixes #2829

playhouse/migrate.py

@@ -859,7 +859,7 @@ def _fix_index(self, sql, column_to_update, new_column):
 
     @operation
     def drop_column(self, table, column_name, cascade=True, legacy=False):
-        if sqlite3.sqlite_version_info >= (3, 25, 0) and not legacy:
+        if sqlite3.sqlite_version_info >= (3, 35, 0) and not legacy:
             ctx = self.make_context()
             (self._alter_table(ctx, table)
              .literal(' DROP COLUMN ')