ci(cryostat3): remove submodule job for cryostat3

[andrewazores]

Welcome to Cryostat! 👋

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• Linked a relevant issue which this PR resolves
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Fixes: #

Description of the change:

This change adds allows a match expression example to be copied to the clipboard...

Motivation for the change:

This change is helpful because users may want to copy the example for easier use...

How to manually test:

1. Run CRYOSTAT_IMAGE=quay.io... sh smoketest.sh...
2. ...

[github-actions]

Hi @andrewazores! Add at least one of the required labels to this PR

Required labels are : chore,ci,cleanup,docs,feat,fix,perf,refactor,style,test

[github-actions]

Build Error! No Linked Issue found. Please link an issue or mention it in the body using #<issue_id>