Let's make sure we run our tests in a specific namespace, as in case of
any kind of issue, we will just get rid of the namespace itself, which
will take care of cleaning up any leftover from failing tests.
One important thing to mention is why we can get rid of the `namespace:
${namespace}` on the tests that are already using it, and let's do it in
parts:
* namespace: default
We can easily get rid of this as that's the default namespace where
pods are created, so it was a no-op so far.
* namespace: test-quota-ns
My understanding is that we'd need this in order to get a clean
namespace where we'd be setting a quota for. Doing this in the
namespace that's only used for tests should **not** cause any
side-effect on the tests, as we're running those in serial and there's
no other pods running on the `kata-containers-k8s-tests` namespace
Last but not least, we're not dynamically creating namespaces as the
tests are not running in parallel, **never**, not in the case of having
2 tests being ran at same time, neither in the case of having 2 jobs
being scheduled to the same machine.
Fixes: #6864
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
