[clang-tools-extra] [clang-tidy] Add `modernize-redundant-zero-initializer` (PR #209367)

[Zeyi Xu via cfe-commits]

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zeyi2 wrote:

https://github.com/llvm/llvm-project/pull/210574 would fix the CI issue, you can ignore the failing tests for now :)

https://github.com/llvm/llvm-project/pull/209367