Warning: cannot refer to a non-static member from the handler of a constructor function try block

[Pesa]

With a development snapshot of clang 19 on Ubuntu 22.04/24.04:

  ../scope-lite.hpp:988:40: warning: cannot refer to a non-static member from the handler of a constructor function try block [-Wexceptions]
    988 |             other.get_deleter()( this->get() );
        |                                        ^
  1 warning generated.