fix(JP): fix date comparison error in price parser

[shuuji3]

resolves #4346

This is because df['Date'] column has datetime64[ns] dtype instead of datetime.date type. This change convert it to datetime.date by .dt.date attribute.

I also used Pandas' pd.to_datetime() method instead of DataFrame.apply() for code readability.

[VIKTORVAV99]

Hi and Welcome!

This is a really nice fix!
I'll go ahead and merge this right away. 🎉

[shuuji3]

@VIKTORVAV99 Thanks for taking a look!🙂 I love this project. I live in Japan and can read resources written in Japanese so I'd like to contribute more especially in Japan area if any.

[VIKTORVAV99]

Hmm, the CircleCI checks don't appear to be running (and I can't merge without them...)

@Kongkille do you have any idea why?
I tried triggering them manually on CircleCI but I can't even seem to find this PR on the dashboard.

[VIKTORVAV99]

@VIKTORVAV99 Thanks for taking a look!🙂 I love this project. I live in Japan and can read resources written in Japanese so I'd like to contribute more especially in Japan area if any.

Thanks for helping out, if you want something to do right away you could look over the translations, I know we recently added a few more strings to translate and I don't think we have a Japanese translation for those yet.

Otherwise I think it's the usual things like keeping the capacities updated such that's needed for now.

Only do what you can (some can take a lot of time) and feel comfortable with though, any contribution however small is appreciated!

[shuuji3]

Thanks for your advice. I can update the Japanese translation.