fix: remove obsolete Arduino authentication configuration

[dido18]

The auth configuration of the apt-repo can be removed.

At the time of writing endpoints apt-repo.oniudra.cc and apt-repo.arduino.cc are still protected by basic auth.

Related Pr

https://github.com/bcmi-labs/infrastructure/pull/2650
WAIT devops to remove basic auth before merging

How to test

Expected: After basic auth is removed from apt-repo.oniudra, the apt does not return 401 error code.

Change the config of a board as follows:

• remove the /etc/apt/auth.conf.d/arduino.conf file
• change the /etc/apt/sources.list.d/arduino.list and put deb [signed-by=/etc/apt/keyrings/arduino.asc] https://apt-repo.oniudra.cc/ stable main
• execute arduino-app-cli system update --only-arduino

[dido18]

arduino@dido:/$ cat /etc/apt/sources.list.d/arduino.list
deb [signed-by=/etc/apt/keyrings/arduino.asc] https://apt-repo.arduino.cc unstable main

arduino@dido:/$ sudo rm -rf /etc/apt/auth.conf.d/arduino.conf
[sudo] password for arduino

arduino@dido:/$ arduino-app-cli system update --only-arduino
Found 1 upgradable packages:
Package: arduino-app-cli, From: 0.0.0-95e47bb, To: 0.8.0-rc.2
Do you want to upgrade these packages? (yes/no)
yes
[starting] Upgrade is starting
[log] Download started: https://downloads.arduino.cc/packages/package_index.tar.bz2
[log] Download progress: downloaded:92392 total_size:92392
[log] Download completed: success:true
[log] Platform 'arduino:zephyr' is already at the latest version
[starting] Upgrade is starting
[log] Reading package lists...
[log] Building dependency tree...
[log] Reading state information...
[log] The following packages will be upgraded:
[log]   arduino-app-cli
[log] 1 upgraded, 0 newly installed, 0 to remove and 76 not upgraded.
[log] Need to get 39.5 MB of archives.
[log] After this operation, 0 B of additional disk space will be used.
[log] Get:1 https://apt-repo.arduino.cc unstable/main arm64 arduino-app-cli arm64 0.8.0-rc.2 [39.5 MB]
[log] apt-listchanges: Reading changelogs...
[log] Fetched 39.5 MB in 12s (3,206 kB/s)
(Reading database ... 61498 files and directories currently installed.)
[log] Preparing to unpack .../arduino-app-cli_0.8.0-rc.2_arm64.deb ...
[log] Removed '/etc/systemd/system/multi-user.target.wants/arduino-app-cli.service'.
[log] Removed '/etc/systemd/system/multi-user.target.wants/arduino-burn-bootloader.service'.
[log] Removed '/etc/systemd/system/multi-user.target.wants/arduino-avahi-serial.service'.
[log] Unpacking arduino-app-cli (0.8.0-rc.2) over (0.0.0-95e47bb) ...
[log] Setting up arduino-app-cli (0.8.0-rc.2) ...
[log] Created symlink '/etc/systemd/system/multi-user.target.wants/arduino-app-cli.service' → '/etc/systemd/system/arduino-app-cli.service'.
[log] Created symlink '/etc/systemd/system/multi-user.target.wants/arduino-burn-bootloader.service' → '/etc/systemd/system/arduino-burn-bootloader.service'.
[log] Created symlink '/etc/systemd/system/multi-user.target.wants/arduino-avahi-serial.service' → '/etc/systemd/system/arduino-avahi-serial.service'.
[log]