tests(ci): copy and upload failed test logs

[Water-Melon]

KAG-2563

Summary

Checklist

• The Pull Request has tests
• A changelog file has been created under changelog/unreleased/kong or skip-changelog label added on PR if changelog is unnecessary. README.md
• There is a user-facing docs PR against https://github.com/Kong/docs.konghq.com - PUT DOCS PR HERE

Issue reference

Fix #[issue number]

[Water-Melon]

Could you resolve merge conflicts?

It's been fixed.

[Water-Melon]

I downloaded the file from https://github.com/Kong/kong/actions/runs/9343590417?pr=13115, the filename is a bit hard to understand:

...zel-bin_build_kong-dev_share_lua_5.1_luassert_assert.lua.43.log

Can we consider change the filename to something like:

spec/02-integration/06-invalidations/02-core_entities_invalidations_spec_line_109.log

or

spec_02-integration_06-invalidations_02-core_entities_invalidations_spec_line_109.log

instead? It will be much easier to search for.

Thanks @dndx. That was because I encapsulated the logic for copying errlog into a function before opening the PR, but the level for debug.getinfo was not updated accordingly. This problem has been fixed, and I also adjusted the name suffix.

Here is the test:
https://github.com/Kong/kong/actions/runs/9411253941/job/25924210228?pr=13115#step:20:42
https://github.com/Kong/kong/actions/runs/9462602728/job/26065965800?pr=13115

[Water-Melon]

Here is the newest test ci: https://github.com/Kong/kong/actions/runs/9462602728/job/26065965800?pr=13115

We can see that the first test outputs a red 'Failed to save...' message because there is no error log. The second test outputs a yellow 'Log saved as...' message because an error log is present.

[team-gateway-bot]

Cherry-pick failed for master, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally.

git remote add upstream https://github.com/kong/kong-ee
git fetch upstream master
git worktree add -d .worktree/cherry-pick-13115-to-master-to-upstream upstream/master
cd .worktree/cherry-pick-13115-to-master-to-upstream
git checkout -b cherry-pick-13115-to-master-to-upstream
ancref=$(git merge-base 49f7b44c8ef5f9db1c9c62701a79437dfc116c16 1aa82a04bc8f3b8b94b5f4d0c0fefed7a27a530d)
git cherry-pick -x $ancref..1aa82a04bc8f3b8b94b5f4d0c0fefed7a27a530d