Add mutation process to allProcesses list

[spennymac]

What this PR does / why we need it:

Which issue(s) this PR fixes
Fixes #1515

Special notes for your reviewer:

I opened this up real quick in the event that this was just an oversight from you all and a quick win to close an issue.

[spennymac]

I signed it

[codecov-commenter]

Codecov Report

Merging #1516 (0f18ded) into master (bbdcd7b) will increase coverage by 0.37%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1516      +/-   ##
==========================================
+ Coverage   52.40%   52.77%   +0.37%     
==========================================
  Files          82       82              
  Lines        7431     7431              
==========================================
+ Hits         3894     3922      +28     
+ Misses       3174     3154      -20     
+ Partials      363      355       -8     

Flag	Coverage Δ
unittests	52.77% <ø> (+0.37%)	⬆️

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

Impacted Files	Coverage Δ
pkg/controller/config/process/excluder.go	11.76% <ø> (ø)
pkg/readiness/ready_tracker.go	71.10% <0.00%> (+0.61%)	⬆️
pkg/watch/replay.go	81.25% <0.00%> (+2.27%)	⬆️
...onstrainttemplate/constrainttemplate_controller.go	56.93% <0.00%> (+5.02%)	⬆️

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[sozercan]

LGTM

[maxsmythe]

LGTM, thanks for the PR!