In case of a re-run attempt, if one asks for only failing jobs to
be re-run (e.g. MacOS job on GitHub hosted runner) and the
previous attempt was successful regarding setup-build-teardown,
then we would try to teardown again an instance already gone.
This would cause an error in the CI.
By checking the 'github.run_attempt' number, we ensure that we run
the teardown only if the setup has occurred during the same run
attempt.
Instance teardown might fail regardless the result of build
commands. To make CI green in pull-request we need to check the
result of the build commands instead of the whole workflow result.
Doing so ensure a PR could pass branch protection rules even if
the teardown fails.
This is done to be able to execute CI in further development.
Also, we won't have to temporary lift the branch protection rules
to be able to merge since this upcoming development is a rework
cargo_build.yml workflow.