Unconditional pandas import in datatypes.string

[Sir-MaNiAl]

Describe the bug

There is unconditional pandas import in datatypes.string module after 7202dc5
Since pandas is an extra package and I don't install it, CH client raises exception.

clickhouse-connect logs

Traceback (most recent call last):
...
  File "/venv/lib/python3.11/site-packages/clickhouse_connect/__init__.py", line 1, in <module>
    from clickhouse_connect.driver import create_client
  File "/venv/lib/python3.11/site-packages/clickhouse_connect/driver/__init__.py", line 6, in <module>
    from clickhouse_connect.driver.client import Client
  File "/venv/lib/python3.11/site-packages/clickhouse_connect/driver/client.py", line 13, in <module>
    from clickhouse_connect.datatypes.registry import get_from_name
  File "/venv/lib/python3.11/site-packages/clickhouse_connect/datatypes/__init__.py", line 5, in <module>
    import clickhouse_connect.datatypes.string
  File "/venv/lib/python3.11/site-packages/clickhouse_connect/datatypes/string.py", line 3, in <module>
    import pandas as pd
ModuleNotFoundError: No module named 'pandas'

[genzgd]

Ack, sorry about that. Fix should be released shortly.

[genzgd]

0.5.14 released with a fix.