chore: Fix a couple errors in benchmark inputs

[nakedible]

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[github-actions]

Benchmark for 737fffd

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Test	Base	PR	%
date_to_isoweekdate	10.3±0.12ns	10.3±0.16ns	0.00%
date_to_rd	2.8±0.05ns	2.8±0.07ns	0.00%
date_to_weekday	3.1±0.06ns	3.1±0.06ns	0.00%
datetime_to_secs	5.3±0.03ns	5.3±0.03ns	0.00%
datetime_to_systemtime	9.6±0.12ns	9.6±0.12ns	0.00%
days_in_month	1.3±0.02ns	1.3±0.03ns	0.00%
dhms_to_secs	1.9±0.02ns	1.9±0.04ns	0.00%
is_leap_year	1.2±0.04ns	1.2±0.04ns	0.00%
isoweekdate_to_date	7.3±0.09ns	7.3±0.08ns	0.00%
isoweekdate_to_rd	2.8±0.06ns	2.8±0.07ns	0.00%
isoweeks_in_year	2.0±0.04ns	2.0±0.04ns	0.00%
next_date	1.2±0.03ns	1.2±0.03ns	0.00%
overhead	0.7±0.01ns	0.7±0.01ns	0.00%
prev_date	1.4±0.04ns	1.4±0.04ns	0.00%
rd_to_date	3.9±0.04ns	4.0±0.11ns	+2.56%
rd_to_isoweekdate	6.2±0.17ns	6.2±0.15ns	0.00%
rd_to_weekday	0.8±0.02ns	0.8±0.02ns	0.00%
secs_to_datetime	7.3±0.12ns	7.3±0.17ns	0.00%
secs_to_dhms	3.1±0.05ns	3.1±0.07ns	0.00%
secs_to_systemtime	3.4±0.17ns	3.4±0.09ns	0.00%
systemtime_to_datetime	31.4±0.29ns	31.4±0.26ns	0.00%
systemtime_to_secs	18.1±0.14ns	18.2±0.14ns	+0.55%