Log Message:
gallery-dl: Update to 1.23.1

Changes:
## 1.23.1 - 2022-09-18
### Additions
- [flickr] add support for `secure.flickr.com` URLs
- [hotleak] add hotleak extractors
- [instagram] add `highlight_title` and `date` metadata for highlight
  downloads
- [paheal] add support for videos
- [twitter] add general support for unified cards
- [twitter] implement `cards-blacklist` option
- [tumblr] fetch high-quality inline images
- [tumblr] implement `ratelimit` option
- [zerochan] add `metadata` option
- [postprocessor:zip] implement `files` option

### Fixes
- [bunkr] fix extraction
- [bunkr] use `media-files` servers for `m4v` and `mov` downloads
- [exhentai] improve 509.gif detection
- [exhentai] guess extension for original files
- [poipiku] use `img-org.poipiku.com` as image domain
- [reddit] prevent exception with empty submission URLs
- [redgifs] fix download URLs
- [smugmug] update default API credentials
- [twitter] provide proper `date` for syndication results
- [twitter] fix new-style `/card_img/` URLs
- remove all whitespace before comments after input file URLs

## 1.23.0 - 2022-08-28
### Changes
- [twitter] update `user` and `author` metdata fields
  - for URLs with a single username or ID like `https://twitter.com/USER` or a
    search with a single `from:` statement, `user` will now always refer to the
    user referenced in the URL.
  - for all other URLs like `https://twitter.com/i/bookmarks`, `user` and
    `author` refer to the same user
  - `author` will always refer to the original Tweet author
- [twitter] update `quote_id` and `quote_by` metadata fields
  - `quote_id` is now non-zero for quoted Tweets and contains the Tweet ID of
    the quotng Tweet (was the other way round before)
  - `quote_by` is only defined for quoted Tweets like before, but now contains
    the screen name of the user quoting this Tweet
- [skeb] improve archive IDs for thumbnails and article images
### Additions
- [artstation] add `num` and `count` metadata fields
- [catbox] add `album` extractor
- [blogger] emit metadata for posts without files
- [foolfuuka] update supported domains
- [gelbooru] add support for `api_key` and `user_id`
- [gelbooru] implement pagination for `pool` results
- [instagram] add support for a user's saved collections
- [instagram] provide `date` for directory format strings
- [kemonoparty] add `favorites` option
- [oauth] add `host` config option
- [rule34] implement pagination for `pool` results
- [skeb] add option to download `article` images
- [tumblr] download higher-quality images
- [tumblr] add `count` metadata field
- [wallhaven] implement `metadata` option
- [zerochan] add `tag` and `image` extractors
- [zerochan] implement login with username & password
- [postprocessor:metadata] implement `mode: modify` and `mode: delete`
- [formatter] add `g` conversion for slugifying a string
- [formatter] apply `:J` only to lists
- implement `path-metadata` option
- allow comments after input file URLs
- add global `warnings` option to control `urllib3` warning behavior
### Fixes
- [bunkr] fix extraction
- [deviantart] use public access token for journals
- [e621] fix extraction of `popular` posts
- [fanbox] download cover images in original size
- [mastodon] allow downloading without access token
- [hitomi] update cache expiry time
- [hitomi] fix error when number of tag results is a multiple of 25
- [mangahere] fix `page-reverse` option
- [poipiku] fix posts with more than one image
- [poipiku] update filter for static images
- [slideshare] fix metadata extraction
- [twitter] unescape `+` in search queries
- [twitter] fall back to unfiltered search
- [twitter] ignore invalid user entries
- [vk] prevent exceptions for broken/invalid photos
- [vsco] fix `collection` extraction
- [weibo] prevent exception for missing `playback_list`
- [weibo] prevent errors when paginating over album entries