Jaro-Winkler similarity calculation changed between 0.8.8 and 0.8.9

[leonright]

jellyfish.jaro_winkler_similarity() returns different numbers in 0.8.9 compared to 0.8.8 on Python 3.9.5 with C distribution installed.

Verified on both on Windows 10 and on CentOS 7.

# 0.8.8
>>> import jellyfish
>>> jellyfish.jaro_winkler_similarity("123X", "123Y")
<<< 0.8333333333333334

# 0.8.9
>>> import jellyfish
>>> jellyfish.jaro_winkler_similarity("123X", "123Y")
<<< 0.8833333333333334

Could you please look into the issue or let us know the reason for this change in results received?

Thank you

[jamesturk]

see #147