RFR: 1691: Run Jcheck twice in CheckRun if .jcheck/conf has changed [v3]

[Zhao Song]

On Thu, 8 Dec 2022 18:34:19 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> Are we sure we are not painting ourselves in a corner were a change in .jcheck/conf is impossible to do since it will fail either before or after applying? I can't really think of such example, but maybe I'm just not trying hard enough.

I am not sure but I couldn't think of such example too.

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PR: https://git.openjdk.org/skara/pull/1439