RFR: 1199: Enforce maintainer approval in JBS before allowing to integrate backports into updates projects [v5]

[Zhao Song]

On Mon, 14 Aug 2023 13:58:20 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> Suggestion:
>> 
>>                 " This change is now ready for you to apply for maintainer [approval](" + approval.documentLink() + ")." +
>
> Did you see my last suggestion here? I think we need to be clear that the ball is in the hands of the PR owner.

Sorry, I missed it. Will fix it soon.

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PR Review Comment: https://git.openjdk.org/skara/pull/1537#discussion_r1293711858