[jdk8u] RFR: 8334441: Mark tests in jdk_security_infra group as manual

[Andrew John Hughes]

On Tue, 25 Jun 2024 07:45:06 GMT, SendaoYan <syan at openjdk.org> wrote:

> @sendaoYan The `jdk8u` tree is currently frozen. No more changes are going to be accepted. See: https://mail.openjdk.org/pipermail/jdk8u-dev/2024-June/018738.html Please close this one. You have a pr on [jdk8u-dev](https://git.openjdk.org/jdk8u-dev/pull/526) as well anyway.

I also don't see any reason why this would have been accepted during rampdown. I see nothing critical about it.

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PR Comment: https://git.openjdk.org/jdk8u/pull/57#issuecomment-2189605593