Refresh vendored MEOS-API artefacts from master

The scheduled vendor-drift check went red: vendor/meos-api/meos-idl.json was stale
versus a `make vendor-meos-api` regeneration from MEOS-API@master + MobilityDB@master
headers. Regenerated it — picks up master's setter return-type fixes
(meos_set_datestyle/meos_set_intervalstyle int->bool) and the typerecover pass
(1211 return types / 1455 params recovered from collapsed int). No code change;
vendored artefact only, so the drift check goes green.

Author: estebanzimanyi