Log Message:
gallery-dl: Update to 1.13.6

Changes:
1.13.6
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### Additions
 - [patreon] respect filters and sort order in query parameters (#711)
 - [speakerdeck] add a new extractor for speakerdeck.com (#726)
 - [twitter] add `replies` option (#705)
 - [weibo] add `videos` option
 - [downloader:http] add MIME types for `.psd` files (#714)

### Fixes
 - [artstation] improve embed extraction (#720)
 - [deviantart] limit API wait times (#721)
 - [newgrounds] fix URLs produced by the `following` extractor (#684)
 - [patreon] improve file hash extraction (#713)
 - [vsco] fix user gallery extraction
 - fix/improve Cloudflare bypass code (#728)