RFR: 7420: Update Japanese translation for rules [v2]

Wed Feb 2 17:37:11 UTC 2022

On Sat, 22 Jan 2022 01:11:34 GMT, mohno007 <duke at openjdk.java.net> wrote:

>> mohno007 has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Update copyright year
>
> As you may know, I can sign the OCA.
> Thank you to the developers for your patience.
> Thank you to Dalibor-san and OCA support for resolving the issue.

Hi @mohno007! This PR is ready for integration! Please type /integrate in a new comment.

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PR: https://git.openjdk.java.net/jmc/pull/308