[Bug 1964483] [NEW] Update supported mirror protocol according to official archive mirrors list

[Neurer]

Public bug reported:

While mirrors listed on https://launchpad.net/ubuntu/+archivemirrors
support https, this is not reflected in software-properties-gtk ->
Download from -> other dialogue. Example: Charite Berlin supports https,
but only http is available from the "Protocol" dialogue.

Editing /etc/apt/sources.list mitigates the issue, though
https://bugs.launchpad.net/ubuntu/+source/software-
properties/+bug/1814072 is still unresolved.

lsb_release -rd
Description:	Ubuntu Jammy Jellyfish (development branch)
Release:	22.04

apt-cache policy software-properties-gtk
software-properties-gtk:
Installed: 0.99.19

** Affects: software-properties (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1964483

Title:
  Update supported mirror protocol according to official archive mirrors
  list

Status in software-properties package in Ubuntu:
  New

Bug description:
  While mirrors listed on https://launchpad.net/ubuntu/+archivemirrors
  support https, this is not reflected in software-properties-gtk ->
  Download from -> other dialogue. Example: Charite Berlin supports
  https, but only http is available from the "Protocol" dialogue.

  Editing /etc/apt/sources.list mitigates the issue, though
  https://bugs.launchpad.net/ubuntu/+source/software-
  properties/+bug/1814072 is still unresolved.

  lsb_release -rd
  Description:	Ubuntu Jammy Jellyfish (development branch)
  Release:	22.04

  apt-cache policy software-properties-gtk
  software-properties-gtk:
  Installed: 0.99.19

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