RFR: 8357462: Amend open/test/jdk//java/foreign/TestMatrix.java test scenario to run as manual

[serhiysachkov]

Amend open/test/jdk//java/foreign/TestMatrix.java test scenario to run as manual

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Commit messages:
 - 8357462: Amend open/test/jdk//java/foreign/TestMatrix.java test scenario to run as manual

Changes: https://git.openjdk.org/jdk/pull/25355/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25355&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357462
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25355.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25355/head:pull/25355

PR: https://git.openjdk.org/jdk/pull/25355