[jdk11u] RFR: 8315529: [11u] Exclude some failing Z-GC tests

[Martin Doerr]

On Fri, 1 Sep 2023 12:16:26 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> There are two constantly failing Z-GC tests (in one of our/SAP's Linux x64 CI configurations).
> 
> Since Z-GC is experimental in 11 and thus probably not highly utilized, we should exclude the tests for now.

LGTM.

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Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk11u/pull/80#pullrequestreview-1606850399