RFR: 1199: Enforce maintainer approval in JBS before allowing to integrate backports into updates projects [v6]

[Guoxiong Li]

On Wed, 21 Sep 2022 10:21:56 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix tests.
>
> bots/pr/src/main/java/org/openjdk/skara/bots/pr/ApprovalCommand.java line 129:
> 
>> 127:             });
>> 128:         }
>> 129:         if (pr.labelNames().contains("approval")) {
> 
> Also, the label should probably be `approved`, since we use adjectives (like `ready`) for labels.

I read the [labels](https://github.com/openjdk/jdk/labels) of the JDK project. Almost all of them are nouns and only few labels are adjectives. And the `approved` may be misunderstood as `the pull request has been approved`. So I use the label `approval`.

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PR: https://git.openjdk.org/skara/pull/1364