[clang-format] QualifierOrder does not reorder template arguments

https://github.com/llvm/llvm-project/issues/53981

Reorder the qualifiers inside the template argument. This should handle the simple cases of

```
<const T>
<T const>
```

But only by relaxing that single letter capital variables are not possible macros

Fixes: #53981

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D120710