Requesting permission for a trivial change to LEAF

From: Emil Dotchevski (emildotchevski_at_[hidden])
Date: 2024-07-29 22:08:47

It would be nice to include in the current release this small change that
marks leaf::result objects as nodiscard:

https://github.com/boostorg/leaf/commit/1f745805553934cd76a241649cd9bafa27712836
.

Thanks,
Emil