Store containers logs as artifacts on ci

[denis-tingaikin]

Motivation

Currently, researching bugs can be difficult because logs push as text on test failing. Also, the text doesn't include logs of containers.

Solution

1. Add to https://github.com/networkservicemesh/integration-tests/blob/main/extensions/base/suite.go#L26 logic to store current POD logs into a specific folder. For example ./artifacts

2. Add storing of artifacts on ci
   https://docs.github.com/en/free-pro-team@latest/actions/guides/storing-workflow-data-as-artifacts