[Bug] Error caught when passing str as argument in pgql SuiTransaction.move_call()

[nekohakase]

An error was found when calling a sui contract function which taking vector as an input:

When calling with, e.g.

txn.move_call(
        target=f"{contract_addr}::{module_name}::{mint_func}",
        arguments=[minter_cap, "foo_name","foo_description", "ipfs://foo_url", "ipfs://foo_url"]
    )

Got

/Users/jingan/Dev/sui_poc/pysui_poc_personal/poc_personal.py:174: DeprecationWarning: Call to deprecated class _SuiTransactionBase. (Transitioning to sui_pgql) -- Deprecated since version 0.54.0.
  txn = SuiTransaction(client=client, initial_sender=initial_sender)
Traceback (most recent call last):
  File "/Users/jingan/Dev/sui_poc/pysui_poc_personal/poc_personal.py", line 255, in <module>
    append_mint_and_transfer_move_calls(txn, CONTRACT_ADDRESS, MINTER_CAP, alice_addr)
  File "/Users/jingan/Dev/sui_poc/pysui_poc_personal/poc_personal.py", line 183, in append_mint_and_transfer_move_calls
    result = txn.move_call(
             ^^^^^^^^^^^^^^
  File "/Users/jingan/Dev/sui_poc/pysui_poc_personal/venv/lib/python3.11/site-packages/pysui/sui/sui_pgql/pgql_sync_txn.py", line 494, in move_call
    parms = ab.build_args(self.client, arguments, ars)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jingan/Dev/sui_poc/pysui_poc_personal/venv/lib/python3.11/site-packages/pysui/sui/sui_pgql/pgql_txn_argb.py", line 290, in build_args
    track.convert_args[aindex] = _argument_validate(
                                 ^^^^^^^^^^^^^^^^^^^
  File "/Users/jingan/Dev/sui_poc/pysui_poc_personal/venv/lib/python3.11/site-packages/pysui/sui/sui_pgql/pgql_txn_argb.py", line 225, in _argument_validate
    raise ValueError("Expected list type argument...")
ValueError: Expected list type argument...

Expected:
python string can be converted to vector when calling move_call()