[clang-tools-extra] [clang-tidy] do not diagnose array types within implicit instantiations of a template (PR #132924)

[St. Muench via cfe-commits]

stmuench wrote:

> Please add release notes in this patch. I think the idea is good, but you can look into my review after PiotrZSL's comments.

@vbvictor many thanks for your very valuable comments. I incorporated them as far as possible.

https://github.com/llvm/llvm-project/pull/132924