Eliminate the root user from podtracer image by minimizing access

[acmenezes]

In order to reduce the attack surface on podtracer deployments find the smallest viable set of permissions for podtracer container and eliminate the root user from there. That means that we may need to run a capability aware container that can raise capabilities from the code itself escalating privileges or temporarily using file caps that can work with the restricted SCC. This is a tough one to try.