add-unit-testing-to-rhtap

[JasonPowr]

This pr adds unit testing to rhtap for rekor. I've created my own version of rekor in rhtap in my own workspace and have tested both fail and success scenarios for both.

Comments

I only went with that image as its the same used in the Docker files, if it needs to be changed let me know 👍
Gonna work on the e2e tests next

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: JasonPowr
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[JasonPowr]

If you can access the links you can see them passing, you can also view the logs to confirm

1. https://console.redhat.com/preview/application-pipeline/workspaces/securesign/applications/rekor/pipelineruns/backfill-redis-on-pull-request-hpxt5
2. https://console.redhat.com/preview/application-pipeline/workspaces/securesign/applications/rekor/pipelineruns/rekor-cli-on-pull-request-gdwhn
3. https://console.redhat.com/preview/application-pipeline/workspaces/securesign/applications/rekor/pipelineruns/rekor-server-on-pull-request-9n5m2

[lance]

/lgtm