Log Message:
gallery-dl: Update to 1.16.1

Changes:
1.16.1
------
### Additions
 - [instagram] add `include` option (#1180)
 - [pinterest] implement video support (#1189)
 - [sankaku] reimplement login support (#1176, #1182)
 - [sankaku] add support for sankaku.app URLs (#1193)

### Changes
 - [e621] return pool posts in order (#1195)
 - [hentaicafe] prefer title of `/hc.fyi/` pages (#1106)
 - [hentaicafe] simplify default filenames
 - [sankaku] normalize `created_at` metadata (#1190)
 - [postprocessor:exec] do not add missing `{}` to command (#1185)

### Fixes
 - [booru] improve error handling
 - [instagram] warn about private profiles (#1187)
 - [keenspot] improve redirect handling
 - [mangadex] respect `chapter-reverse` settings (#1194)
 - [pixiv] output debug message on failed login attempts (#1192)
 - increase SQLite connection timeouts (#1173)

### Removals
 - [mangapanda] remove module