Redefine Macros in Makefile

[razo7]

Redefine _OPERATORNAME and _OPERATORNAMESPACE macros in Makefile. Add mew target, bundle-cleanup, for removing a bundle installed via bundle-run target.

[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

[razo7]

/test 4.15-openshift-e2e

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: razo7

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/medik8s/node-maintenance-operator/blob/main/OWNERS)~~ [razo7] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[razo7]

/test 4.15-openshift-e2e

[clobrano]

Nice commits re-organization :clap:

/lgtm

[razo7]

/retest