[clang-tools-extra] [clang-tidy] Add new `bugprone-suspicious-pointer-arithmetics-using-sizeof` (`cert-arr39-c`) check (PR #106061)

[via cfe-commits]

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@@ -3,10 +3,10 @@
 bugprone-suspicious-pointer-arithmetics-using-sizeof
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-Finds suspicious pointer arithmetic calculations where the pointer is offset by a ``sizeof()`` expression.
+Finds suspicious pointer arithmetic calculations where the pointer is offset by an ``alignof()``, ``offsetof()``, or ``sizeof()`` expression.
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EugeneZelenko wrote:

Please follow 80 characters limit.

https://github.com/llvm/llvm-project/pull/106061