[emacs] update 6 drones

Update lib/hydra   to  0.14.0-22-g67098cc
Update lib/ivy     to  0.10.0-499-g86635fb
Update lib/magit   to v2.90.1-49-g0e6639bb
Update lib/org     to release_9.1.14-1048-gd3f9cd0ee
Update lib/request to v0.3.0-12-g187d3bf
Update lib/slack   to  17928ce