Version 13.4

Released 2021-03-14

Major Changes:

• Full support of Bot API 5.1 (#2424)

Minor changes, CI improvements, doc fixes and type hinting:

• Improve Updater.set_webhook (#2419)
• Doc Fixes (#2404)
• Type Hinting Fixes (#2425)
• Update pre-commit Settings (#2415)
• Fix Logging for Vendored urllib3 (#2427)
• Stabilize Tests (#2409)