Add pqc_sigcheck if PQC repo is detected

[ycedres]

What does this PR change?

add description

Codespace

Check if you already have a running container clicking on

GUI diff

No difference.

Before:

After:

• DONE

Documentation

• No documentation needed: add explanation. This can't be used if there is a GUI diff

• No documentation needed: only internal and user invisible changes

• Documentation issue was created: Link for SUSE Multi-Linux Manager contributors, Link for community contributors.

• API documentation added: please review the Wiki page Writing Documentation for the API if you have any changes to API documentation.

• (OPTIONAL) Documentation PR

• DONE

Test coverage

ℹ️ If a major new functionality is added, it is strongly recommended that tests for the new functionality are added to the Cucumber test suite

• No tests: add explanation

• No tests: already covered

• Unit tests were added

• Cucumber tests were added

• DONE

Links

Issue(s): https://github.com/SUSE/spacewalk/issues/31368
Port(s): # add downstream PR(s), if any

• 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 "frontend_checks"
• Re-run test "spacecmd_unittests"

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[ycedres]

With the first commit I got an error due to the plugin not being available in the zypper chroot:

/usr/lib/zypp/plugins/sigcheck/pqcverification{[2-No such file or directory]}

With the second commit I try to make the plugin available in the chroot by implementing plugin execution in / fallback. However, this is the error I am getting with the current implementation:

Command exited with status 129. ( Can't exec '/usr/lib/zypp/plugins/sigcheck/pqcverification', exec failed ((40)Too many levels of symbolic links).