Avoid writing row numbers when creating ticket files

[warwickmm]

We should avoid writing the index (row numbers) when creating the ticket files. The row numbers aren't helpful, and make the file more difficult to maintain and consume.

This can be done by providing index=False to the invocations of to_csv here:

openelections-data-wv/scripts/tickets.py

Lines 278 to 284 in cd93ec9

	def save(self, df: pd.DataFrame, change_df: pd.DataFrame) -> None:
	'''
	Saves data to file as CSVs.
	'''
	filename = f'{self.year}/{self.state}__{self.year}__tickets.csv'
	df.to_csv(filename)
	change_df.to_csv(f'{self.year}/{self.state}__{self.year}__ticket__changes.csv')

This is related to openelections/openelections-data-sd#31.