[clang-tools-extra] [clang-tidy] Fix formatting and add release notes entry (PR #141584)

[Baranov Victor via cfe-commits]

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@@ -114,6 +114,9 @@ Improvements to clang-tidy
 - Fixed bug in :program:`run_clang_tidy.py` where the program would not
   correctly display the checks enabled by the top-level `.clang-tidy` file.
 
+- Fixed some false positives in the ``readability-redundant-smartptr-get``
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vbvictor wrote:

Please, place this in "Changes in existing checks" category (line 157).
Follow existing style there and put in alphabetical order (by check name)

https://github.com/llvm/llvm-project/pull/141584