QE: Add a refresh option to invalidate cache in Twopence/Lavanda instances

[srbarrios]

What does this PR change?

Add a refresh option to invalidate cache in Twopence/Lavanda instances

GUI diff

No difference.

• DONE

Documentation

• No documentation needed

• DONE

Test coverage

• Cucumber tests were refactored

• DONE

Links

Ports:

• Manager-4.3

• DONE

Changelogs

Make sure the changelogs entries you are adding are compliant with https://github.com/uyuni-project/uyuni/wiki/Contributing#changelogs and https://github.com/uyuni-project/uyuni/wiki/Contributing#uyuni-projectuyuni-repository

If you don't need a changelog check, please mark this checkbox:

• No changelog needed

If you uncheck the checkbox after the PR is created, you will need to re-run changelog_test (see below)

Re-run a test

If you need to re-run a test, please mark the related checkbox, it will be unchecked automatically once it has re-run:

• Re-run test "changelog_test"
• Re-run test "backend_unittests_pgsql"
• Re-run test "java_pgsql_tests"
• Re-run test "schema_migration_test_pgsql"
• Re-run test "susemanager_unittests"
• Re-run test "javascript_lint"
• Re-run test "spacecmd_unittests"

[nodeg]

RuboCop has some complaints.

Inspecting 40 files
..C...................................C.

Offenses:

features/step_definitions/command_steps.rb:14[6](https://github.com/uyuni-project/uyuni/actions/runs/5925441333/job/16064878138?pr=7443#step:5:7)3:1: C: Layout/TrailingWhitespace: Trailing whitespace detected.
features/step_definitions/command_steps.rb:1480:1: C: Layout/TrailingWhitespace: Trailing whitespace detected.
features/step_definitions/command_steps.rb:1482:1: C: Layout/TrailingWhitespace: Trailing whitespace detected.
features/step_definitions/command_steps.rb:1509:2[7](https://github.com/uyuni-project/uyuni/actions/runs/5925441333/job/16064878138?pr=7443#step:5:8): C: Style/BlockDelimiters: Avoid using {...} for multi-line blocks.
  [9100, 9117, 91[8](https://github.com/uyuni-project/uyuni/actions/runs/5925441333/job/16064878138?pr=7443#step:5:9)7].each { |port|
                          ^
features/support/twopence_init.rb:74:1: C: Layout/TrailingWhitespace: Trailing whitespace detected.