[internal] Improve tar packing

[astef]

Description

This is an improvement of tar, proposed here, then back-ported to v.4.7.0, and proposed in a form of a patch, replacing an older one.

Why do we need it, and what problem does it solve?

Older patch had a several problems:

• not properly handling errors of file Close (sometimes ignoring them, sometimes silently returning success in the middle of the work)
• not handling symlinks properly
• Zip Slip vulnerability
• bug, when --working-mount-dir is a relative path

What is the expected result?

No change in behavior, only bugs fixed.

Checklist

• The code is covered by unit tests.
• Changes were tested in the Kubernetes cluster manually.