UnprotectAndRegisterMemoryChunk should only be called if we have
CodePageCollectionMemoryModificationScope or
CodeSpaceMemoryModificationScope open.

This also fixes cctests that create code objects without a
code modification scope.

Bug: v8:12054
Change-Id: Id931f1f8120050b2bb76ef3d5701b9a32e52ff37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3277882
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77873}