Pass type to sql_alter_column_* where it was missing.

This is a followup to 2b3a941457

django/db/backends/base/schema.py

@@ -411,6 +411,7 @@ class BaseDatabaseSchemaEditor:
                 "table": self.quote_name(model._meta.db_table),
                 "changes": self.sql_alter_column_no_default % {
                     "column": self.quote_name(field.column),
+                    "type": db_params['type'],
                 }
             }
             self.execute(sql)