[clang-tools-extra] [clang-tidy] Update google todo checker with style guide changes. (PR #165565)

[Quentin Khan via cfe-commits]

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@@ -329,6 +329,10 @@ Changes in existing checks
   adding an option to allow pointer arithmetic via prefix/postfix increment or
   decrement operators.
 
+- Improved :doc:`google-readability-todo
+  <clang-tidy/checks/google/readability-todo>` check to accept the new todo
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qukhan wrote:

Done.

https://github.com/llvm/llvm-project/pull/165565