[emacs] update 6 drones

lib/elisp-refs              master                     1.3-5-g226ea71
lib/helpful                 master                     0.13-15-g607048a
lib/magit                   master                     2.13.0-256-g9ece0c93
lib/org                     master                    release_9.1.14-932-gf82a3051a
lib/ox-hugo                 master                    v0.8-398-gebf37ef
lib/projectile              master                    v1.0.0-77-g4fc07d1