fix(ci): coverage report generation for k8s_env tests

[tesla59]

Purpose of PR?:

Fixes #1758

Does this PR introduce a breaking change?
No, it changes Ci step

If the changes in this PR are manually verified, list down the scenarios covered::
N/A

Additional information for reviewer? :
The main purpose of gover is to concatenate multiple cover profiles into a single file. We dont need to do this as ginkgo already stored the cover profile in a single file (by default coverprofile.out).

The PR adds a flag in ginkgo test command to generate test profile for every package in the github.com/kubearmor/KubeArmor/tests . The reason to use full path is a bug in ginkgo when using relative path. It is supposedly fixed but using the relative path didnt work in our case (ref: onsi/ginkgo#1161 (comment))

Checklist:

• Bug fix. Fixes CI test suite does not generate coverage report #1758
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• PR Title follows the convention of <type>(<scope>): <subject>
• Commit has unit tests
• Commit has integration tests

[tesla59]

Hi @DelusionalOptimist
Can u please review this
If approved, this can be extended to systemd test as well

[tesla59]

might fix #845