This change reverts #5570, and then also makes the same changes as was done in #5759 to revert to Boost 1.83. We would like to expose Boost 1.88 to more in-depth testing, but with release 3.0.0 coming out soon there is insufficient time to do so, hence the reversion to Boost 1.83 (skipping Boost 1.86 as it has a bug in the executors).
This updates Boost to 1.88, which is needed because Clio wants to move to 1.88 as that fixes several ASAN false positives around coroutine usage. In order for Clio to move to newer boost, libXRPL needs to move too. Hence the changes in this PR. A lot has changed between 1.83 and 1.88 so there are lots of changes in the diff, especially in regards to Boost.Asio and coroutines in particular.
