[clang-tidy] Add `std::span` to default `bugprone-dangling-handle.HandleClasses` (#107711)

`std::span` suffers from the same dangling issues as `std::string_view`.
This patch adds `std::span` to the default list of handle classes in
`bugprone-dangling-handle`, allowing clang-tidy to catch e.g. the
following:
```cpp
span<int> f() {
  // All these return values will dangle.
  array<int, 1> A;
  return {A};

  vector<int> Array;
  return {Array};
}
```

0 files changed, 0 insertions, 0 deletions