[jdk21u] RFR: 8313904: [macos] All signing tests which verifies unsigned app images are failing

[Alexey Semenyuk]

On Thu, 17 Aug 2023 00:10:11 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> Clean backport of JDK-8313904.

Marked as reviewed by asemenyuk (Author).

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PR Review: https://git.openjdk.org/jdk21u/pull/67#pullrequestreview-1582853831