foris-controller: update to version 5.5.1

Changed

• tests: Refactor helper functions into shared module.
• tests: Use tox to run tests and linter checks instead of using deprecated setuptools integration for such tasks.
• setup.py: Drop the unnecessary egg suffix in VCS links.
• setup.py: Remove obsolete setuptools keywords (tests_require, setup_requires, dependency_links, ...).
• tox: Use shared tox.ini for foris-controller and modules.

Fixed

• guest: Use correct guest network bridge name for Turris OS 6.0+, so QoS for guest network will be able to start again.
• wan: Do not crash when some of the PPPoE credentials options are missing in uci config.

requested review from @mvasilek

assigned to @mvasilek

changed milestone to %Turris OS 6.3.0

guest: Use correct guest network bridge name for Turris OS 6.0+, so QoS for guest network will be able to start again.

If I am reading the code right, there isn't a fallback to the old name that can be left from the Turris OS 5 migration, so this means this PR needs to be merged together with !1064 (merged)

resolved all threads

added 6 commits

• 9dea0601...0b498385 - 5 commits from branch develop
• 3473f987 - foris-controller: update to version 5.5.1

Compare with previous version

changed target branch from develop to master

merged