Add connection test

[lentzi90]

We don't currently have a specific test that checks if pods can reach each other (on the same or a different node). Of course many tests will fail if there are connection issues between pods/nodes, but it can be hard to debug and conclude that the issue is coming from network issues. Therefore I suggest adding a test specifically for this.

We could for example use mirantis k8s-netchecker to ensure the network is operational in the workload cluster.

[Rozzii]

/triage accepted
/help
/kind feature

[metal3-io-bot]

@Rozzii:
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In response to this:

/triage accepted
/help
/kind feature

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[metal3-io-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

[lentzi90]

/remove-lifecycle stale

[metal3-io-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues will close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[Rozzii]

/lifecycle frozen