mount /etc/passwd and /etc/group for etcd ownership related checks

[i-karina]

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Changes to job-master.yaml are also needed in job.yaml to properly check ownership of etcd data dir

Issue: https://github.com/aquasecurity/kube-bench/issues/1275

Related to issue: https://github.com/aquasecurity/kube-bench/issues/842 fix the same as in https://github.com/aquasecurity/kube-bench/pull/868

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[mozillazg]

In most cases the job that was created via job.yaml will not be running on the master node. IMHO, mount /etc/passwd and /etc/group from worker node is not necessary.