Integrated: 2107: Change naming of branches created by /backport command

[Zhao Song]

On Wed, 22 Nov 2023 00:01:18 GMT, Zhao Song <zsong at openjdk.org> wrote:

> Since in [JDK-8320358](https://bugs.openjdk.org/browse/JDK-8320358), the GitHub action would ignore the branches whose name start with 'jdk', we should change the naming of branches created by backport command.

This pull request has now been integrated.

Changeset: a1fd86f9
Author:    Zhao Song <zsong at openjdk.org>
URL:       https://git.openjdk.org/skara/commit/a1fd86f9494c3f6aab3a7260a204c8f04f3e4fe6
Stats:     1 line in 1 file changed: 0 ins; 0 del; 1 mod

2107: Change naming of branches created by /backport command

Reviewed-by: erikj

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PR: https://git.openjdk.org/skara/pull/1588