Merge branch 'remove-utilities-image-reference' into 'master'

remove deprecated, unmaintained utilities image

See merge request !5791

tests/images.txt

 registry1.dso.mil/ironbank/big-bang/base:2.1.0
-registry1.dso.mil/ironbank/big-bang/utilities:1.0.3
 registry1.dso.mil/ironbank/opensource/kubernetes-1.21/kubectl:v1.21.14
 registry1.dso.mil/ironbank/opensource/kyverno/kyvernocli:v1.13.2
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