update controller runtime version in go.mod

[ranakan19]

• update controller runtime to v0.15
• replace apimachinery client object with controller-runtime client object
  wrt : https://issues.redhat.com/browse/SANDBOX-785

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.43%. Comparing base (4797d02) to head (dc1faa0).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #478   +/-   ##
=======================================
  Coverage   85.43%   85.43%           
=======================================
  Files          33       33           
  Lines        2519     2519           
=======================================
  Hits         2152     2152           
  Misses        281      281           
  Partials       86       86           

Flag	Coverage Δ
unittests	85.43% <ø> (ø)

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[openshift-ci]

@ranakan19: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e	dea8ed2	link	true	/test e2e

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[MatousJobanek]

Looks good 👍

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alexeykazakov, MatousJobanek, ranakan19

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• OWNERS [MatousJobanek,alexeykazakov,ranakan19]

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[openshift-merge-robot]

PR needs rebase.

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