Testsuite: update test containers to leap 15.5

[jordimassaguerpla]

What does this PR change?

Testsuite: update test containers to leap 15.5

GUI diff

No difference.

• DONE

Documentation

• No documentation needed

• DONE

Test coverage

• No tests
• DONE

Links

Fixes https://github.com/SUSE/spacewalk/issues/22694

• 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

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Re-run a test

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• 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"

[deneb-alpha]

I left some remarks

[deneb-alpha]

Suggested change

	zypper -n ar --no-gpgcheck http://download.opensuse.org/repositories/systemsmanagement:/sumaform:/tools/openSUSE_Leap_15.4/ tools && \
	zypper -n ar --no-gpgcheck http://download.opensuse.org/repositories/systemsmanagement:/sumaform:/tools/openSUSE_Leap_15.5/ tools && \

[deneb-alpha]

@jordimassaguerpla I also have a doubt on the list of installed packages.
postgresql-devel -> this should still be version 14 because we didn't bump the postgresql version.

[deneb-alpha]

Suggested change

	RUN zypper ar -G http://download.opensuse.org/update/leap/15.4/backports/ backports_update_repo
	RUN zypper ar -G http://download.opensuse.org/update/leap/15.5/backports/ backports_update_repo

and the same applies to the other repos mentioning 15.4 instead of 15.5

RUN zypper ar -G http://download.opensuse.org/distribution/leap/15.4/repo/oss/ os_pool_repo
RUN zypper ar -G http://download.opensuse.org/update/leap/15.4/oss/ os_update_repo
RUN zypper ar -G http://download.opensuse.org/update/leap/15.4/sle/ sle_update_repo

Sorry, I can't add a suggestion for changing also those

[deneb-alpha]

not sure why here we are using a SLE image instead openSUSE Leap. I know that the bci-init is based on tumbleweed, not on Leap, but using SLE as base and adding Leap repos sounds weird to me

[github-actions]

👋 Hello! Thanks for contributing to our project.
Acceptance tests will take some time (aprox. 1h), please be patient ☕
You can see the progress at the end of this page and at https://github.com/uyuni-project/uyuni/pull/7648/checks
Once tests finish, if they fail, you can check 👀 the cucumber report. See the link at the output of the action.
You can also check the artifacts section, which contains the logs at https://github.com/uyuni-project/uyuni/pull/7648/checks.
See the troubleshooting guide if you need any help.

Happy hacking!
⚠️ You should not merge if acceptance tests fail to pass. ⚠️

[jordimassaguerpla]

@deneb-alpha : Thanks for your feedback. I have addressed all your revisions.