Log Message:
youtube-dl: Update to 20200529

Changes:
20200529
--------
Core
* [postprocessor/ffmpeg] Embed series metadata with --add-metadata
* [utils] Fix file permissions in write_json_file (#12471, #25122)

Extractors
* [ard:beta] Extend URL regular expression (#25405)
+ [youtube] Add support for more invidious instances (#25417)
* [giantbomb] Extend URL regular expression (#25222)
* [ard] Improve URL regular expression (#25134, #25198)
* [redtube] Improve formats extraction and extract m3u8 formats (#25311,
  #25321)
* [indavideo] Switch to HTTPS for API request (#25191)
* [redtube] Improve title extraction (#25208)
* [vimeo] Improve format extraction and sorting (#25285)
* [soundcloud] Reduce API playlist page limit (#25274)
+ [youtube] Add support for yewtu.be (#25226)
* [mailru] Fix extraction (#24530, #25239)
* [bellator] Fix mgid extraction (#25195)