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 85.46%. Comparing base (92751a2) to head (9384c21).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #478   +/-   ##
=======================================
  Coverage   85.46%   85.46%           
=======================================
  Files          32       32           
  Lines        3172     3172           
=======================================
  Hits         2711     2711           
  Misses        374      374           
  Partials       87       87           

Flag	Coverage Δ
unittests	85.46% <ø> (ø)

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[sonarqubecloud]

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

[MatousJobanek]

Looks good 👍

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[sonarqubecloud]

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 SonarQube Cloud