[clang] [Clang][ASTMatcher] Add `dependentTemplateSpecializationType` AST mat… (PR #121435)

[Amr Hesham via cfe-commits]

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@@ -1113,6 +1113,8 @@ AST Matchers
 
 - Add ``dependentNameType`` matcher to match a dependent name type.
 
+- Add ``dependentTemplateSpecializationType`` matcher to match dependent template specialization types.
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AmrDeveloper wrote:

```suggestion
- Add ``dependentTemplateSpecializationType`` matcher to match a dependent template specialization type.
```

The same in `clang/docs/LibASTMatchersReference.html` and `clang/include/clang/ASTMatchers/ASTMatchers.h`

https://github.com/llvm/llvm-project/pull/121435