RFR: 1071: auto-set `/csr` flag from JBS state

[Kevin Rushforth]

On Wed, 24 Nov 2021 15:57:55 GMT, Guoxiong Li <gli at openjdk.org> wrote:

> Hi all,
> 
> Currently, the author of the PR or a reviewer could type `/csr` in the comment to direct the need of the CSR.
> It is good for the bot to automatically scan the `scr for` link and set the `csr` label for the PR.
> 
> This patch adds the automatically scanning feature. And the corresponding tests are added.
> 
> Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

Yes, this seems good.

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PR: https://git.openjdk.java.net/skara/pull/1245