Prepare v3.6.0-beta.3 release

[sozercan]

Signed-off-by: Sertac Ozercan sozercan@gmail.com

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, using fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when the PR gets merged):
Fixes #

Special notes for your reviewer:

[julianKatz]

This LGTM, but definitely want someone who's seen a release happen to approve as well.

[maxsmythe]

LGTM

[codecov-commenter]

Codecov Report

Merging #1460 (3876b9d) into master (9ca7917) will increase coverage by 0.27%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1460      +/-   ##
==========================================
+ Coverage   51.57%   51.85%   +0.27%     
==========================================
  Files          78       78              
  Lines        7288     7288              
==========================================
+ Hits         3759     3779      +20     
+ Misses       3175     3159      -16     
+ Partials      354      350       -4     

Flag	Coverage Δ
unittests	51.85% <ø> (+0.27%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/controller/assign/assign_controller.go	45.75% <0.00%> (-1.97%)	⬇️
pkg/readiness/object_tracker.go	84.24% <0.00%> (+1.83%)	⬆️
...onstrainttemplate/constrainttemplate_controller.go	56.32% <0.00%> (+4.29%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9ca7917...3876b9d. Read the comment docs.