[compiler-rt] XFAIL malloc_zone.cpp for darwin/lsan (PR #131234)

[via llvm-commits]

llvmbot wrote:

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Failed to cherry-pick: 02837acaaf2cfdfcbf77e4a7f6629575edb6ffb4

https://github.com/llvm/llvm-project/actions/runs/14184007163

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/131234