[clang-tidy] readability-redundant-smartptr-get: disable for smart pointers to arrays (#141092)

Currently we generate an incorrect suggestion for shared/unique pointers
to arrays; for instance ([Godbolt](https://godbolt.org/z/Tens1reGP)):
```c++
#include <memory>

void test_shared_ptr_to_array() {
  std::shared_ptr<int[]> i;
  auto s = sizeof(*i.get());
}
```
```
<source>:5:20: warning: redundant get() call on smart pointer [readability-redundant-smartptr-get]
    5 |   auto s = sizeof(*i.get());
      |                    ^~~~~~~
      |                    i
1 warning generated.
```
`sizeof(*i)` is incorrect, though, because the array specialization of
`std::shared/unique_ptr` does not have an `operator*()`. Therefore I
have disabled this check for smart pointers to arrays for now; future
work could, of course, improve on this by suggesting, say,
`sizeof(i[0])` in the above example.

0 files changed, 0 insertions, 0 deletions