youtube-dl 2020.05.29

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)