[core] deprecate implementation detail zip headers since there is RZip public interface

[ferdymercury]

This Pull request:

Changes or fixes:

This is necessary step before #23270

At the moment, the headers are just copy-pasted where used. Once they are fully removed in 6.46, one can recreate them in a private folder. I wanted to prevent now creating them with the same name in two different folders which calls for problems.

[github-actions]

Test Results

    23 files      23 suites   3d 20h 53m 14s ⏱️
 3 878 tests  3 876 ✅ 0 💤 2 ❌
79 885 runs  79 883 ✅ 0 💤 2 ❌

For more details on these failures, see this check.

Results for commit 85f5d5e.

♻️ This comment has been updated with latest results.

[pcanal]

I think it is fine to deprecate those headers. Thanks.

[pcanal]

Thanks.

[ferdymercury]

CI failures seem unrelated