ClickHouse v.21.8.10.19

Got exсeption when aes_encrypt_mysql got unexpected result as input

test case:
````
create table test_table
(
    value           Nullable(String),
    encrypted_value Nullable(String)
)
    engine MergeTree order by assumeNotNull(value);

insert into test_table
select 'test_value1', aes_encrypt_mysql('aes-256-ecb', 'test_value1', 'test_key________________________');
insert into test_table
select '', aes_encrypt_mysql('aes-256-ecb', '', 'test_key________________________');
insert into test_table
select null, aes_encrypt_mysql('aes-256-ecb', null, 'test_key________________________');

select aes_decrypt_mysql('aes-256-ecb', value, 'test_key________________________')
from test_table
````

got `Failed to decrypt. OpenSSL error code: 503316603: while executing 'FUNCTION aes_decrypt_mysql` as exception
{
                    if (EVP_CIPHER_CTX_ctrl(evp_ctx, EVP_CTRL_AEAD_GET_TAG, tag_size, encrypted) != 1)
                        onError("Failed to retrieve GCM tag");
                    encrypted += tag_size;
                }
            }
            *encrypted = '\0';
            ++encrypted;
            encrypted_result_column_offsets.push_back(encrypted - encrypted_result_column_data.data());
        }
        
        if (!encrypted_result_column_offsets.empty() && encrypted_result_column_data.size() > encrypted_result_column_offsets.back())
        {
            encrypted_result_column_data.resize(encrypted_result_column_offsets.back());
        }
        encrypted_result_column->validate();
        return encrypted_result_column;
    }
};
template <typename Impl>
class FunctionDecrypt : public IFunction
{
public:
    static constexpr OpenSSLDetails::CompatibilityMode compatibility_mode = Impl::compatibility_mode;
    static constexpr auto name = Impl::name;
    static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionDecrypt>(); }
private:
    using CipherMode = OpenSSLDetails::CipherMode;
    String getName() const override { return name; }
    bool isVariadic() const override { return true; }