**Describe the issue**
Can't insert `String` data to column with `LowCardinality` type.

Starting from 21.1 this query fails

**How to reproduce**
```sql
CREATE TABLE default.lc_test
(   
    `id` LowCardinality(String)
)
ENGINE = MergeTree
PARTITION BY tuple()
ORDER BY id;

Ok.
0 rows in set. Elapsed: 0.003 sec.


insert into lc_test values (toString('a'));
Exception on client:
Code: 49. DB::Exception: Bad cast from type DB::ColumnString to DB::ColumnLowCardinality: data for INSERT was parsed from query

```

**Additional context**
related to issue https://github.com/DarkWanderer/ClickHouse.Client/issues/66

version 20.12 ok
else if (type_info.isString())
        {
            field_type = Field::Types::String;
        }
        else if (type_info.isArray())
        {
            field_type = Field::Types::Array;
        }
        else if (type_info.isTuple())
        {
            field_type = Field::Types::Tuple;
        }
        else if (type_info.isMap())
        {
            field_type = Field::Types::Map;
        }
        else
            throw Exception("Unexpected literal type inside Array: " + nested_type->getName() + ". It's a bug",
                            ErrorCodes::LOGICAL_ERROR);
        if (is_nullable)
            nested_type = std::make_shared<DataTypeNullable>(nested_type);
        info.special_parser.nested_types.emplace_back(field_type, is_nullable);
    }
}
class ReplaceLiteralsVisitor
{
public:
    LiteralsInfo replaced_literals;
    const Context & context;
    explicit ReplaceLiteralsVisitor(const Context & context_) : context(context_) { }