executemany() does not check keyword names for an empty parameter list #1112

Problem

Since #1102, execute() of the default, dict, Arrow, S3FS, and Spark cursors raises TypeError for unknown keyword arguments.
executemany() forwards its keyword arguments to execute() once per parameter set (WithFetch.executemany() in pyathena/result_set.py and WithAsyncFetch.executemany() in pyathena/aio/common.py), so with an empty seq_of_parameters the names are never checked:

cursor.executemany("INSERT INTO t VALUES (%(a)s)", [], work_gruop="typo")  # returns without error
cursor.executemany("INSERT INTO t VALUES (%(a)s)", [{"a": 1}], work_gruop="typo")  # TypeError

No query runs in the first case, so nothing is lost, but whether a typo is reported depends on the data.

Options

1. Validate the keyword names in executemany() before the loop.
2. Leave it as is: an empty batch executes nothing.

Found while reviewing #1102.