pandas FutureWarning - read_csv support

[whart222]

Pandas 2.3 give the following warning:
"""
/home/wehart/dev/doores/Egret/egret/parsers/rts_gmlc/parser.py:259: FutureWarning: Support for nested sequences for 'parse_dates' in pd.read_csv is deprecated. Combine the desired columns with pd.to_datetime after parsing instead.
df = pd.read_csv(file_name,
"""

[blnicho]

This is now throwing an error with the Pandas 3.0.0 release yesterday