Fix mac signing: Stash all files again but with exclusions

[sxa]

Fixes the errors we're seeing at the moment introduced by #1117 - mac executables are not being signed as they were not being included in the stash as they don't have a suffix. Slack thread

The exclude list here is from files that were causing the signed stash to fail to be extracted.

15:53:28 Caused by: java.nio.file.AccessDeniedException: /Users/admin/workspace/workspace/build-scripts/jobs/jdk21u/windbld/workspace/build/src/build/macosx-aarch64-server-release/support/modules_libs/java.base/security/public_suffix_list.dat
16:27:43 Caused by: java.nio.file.AccessDeniedException: /Users/admin/workspace/workspace/build-scripts/jobs/jdk21u/windbld/workspace/build/src/build/macosx-aarch64-server-release/support/modules_libs/java.desktop/fontconfig.bfc

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[sxa]

Note: I still want to revisit this and try and reduce the amount of files which is stashes sine this does increase the amount of time and data that's being thrown across the network unneccesarily, but we can do that later in the interests if keeping the builds working.

[andrew-m-leonard]

looks good