[emacs] update 9 drones

Update lib/company       to  0.9.8-1-g388eec5
Update lib/doom-modeline to v1.1.0
Update lib/elisp-refs    to  1.3-9-ga8900da
Update lib/ghub          to v3.0.0-15-g53e2e29
Update lib/helm          to v3.0-69-gc4846986
Update lib/ht            to  2.2-5-g4ad4ff6
Update lib/ivy           to  0.10.0-506-g13df2a3
Update lib/magit         to v2.90.1-64-g858f2eb3
Update lib/pdf-tools     to v0.80-141-gbd81a2b