Fix stack overflow in `inject_dump_stats!` with prepended modules

`inject_dump_stats!` captured methods via `instance_method` (which
returns the prepended module's version) then redefined them on the
class with `bind_call`. When the captured prepended method called
`super`, it resolved to the newly defined class method, creating an
infinite recursion.

Use an anonymous wrapper module with `super` instead of
`bind_call` to correctly delegate through the method resolution
order without cycles.

Fixes #21587