Fix etcd guard check for control plane remediation

[slintes]

When the PDB doesn't allow disruptions, we need to check if the unhealthy node is already disrupted. If so, remediation is allowed.

Fix for #272 ECOPROJECT-1003 ECOPROJECT-1806

Note for reviewers: probably makes sense to review the commits separately, because one is reorganizing e2e test, while the next one adds the new test

[openshift-ci[bot]]

Skipping CI for Draft Pull Request. If you want CI signal for your change, please convert it to an actual PR. You can still manually trigger a test run with /test all

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: slintes

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/medik8s/node-healthcheck-operator/blob/main/OWNERS)~~ [slintes] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[slintes]

/test 4.14-openshift-e2e

[clobrano]

/lgtm Giving a chance to get more reviews, feel free to unhold /hold

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[clobrano]

/lgtm Giving a chance to get more reviews, feel free to unhold /hold

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[slintes]

/test 4.14-openshift-e2e

[slintes]

wait until 277 is merged before marking as Ready For Review and running more e2e tests, in order to save CI resources

[slintes]

/hold cancel

[slintes]

/retest

[razo7]

/lgtm nice fix