[clang] [clang-format] Revert "[clang-format][NFC] Delete TT_LambdaArrow (#70… (PR #105923)

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llvmbot wrote:

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Failed to cherry-pick: 438ad9f2bf25575c474313de4ad85a5da6f69e4c

https://github.com/llvm/llvm-project/actions/runs/10607260570

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/105923