[clang-tools-extra] [clang-tidy] support pointee mutation check in misc-const-correctness (PR #130494)

[Baranov Victor via cfe-commits]

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@@ -125,6 +132,22 @@ Options
     // No warning
     const int *const pointer_variable = &value;
 
+.. option:: WarnPointersAsPointers
+
+  This option enables the suggestion for ``const`` of the value pointing.
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vbvictor wrote:

```suggestion
  This option enables the suggestion for ``const`` of the value pointing to.
```

https://github.com/llvm/llvm-project/pull/130494