Replaced Ginkgo and Gomega with Testify in functional tests

[hbelmiro]

The issue resolved by this Pull Request:

Resolves https://issues.redhat.com/browse/RHOAIENG-4261

Description of your changes:

Replaced Ginkgo and Gomega with Testify in functional tests

Testing instructions

Run make test. All tests must pass.

Checklist

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[dsp-developers]

A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-628
An OCP cluster where you are logged in as cluster admin is required.

To use this image run the following:

cd $(mktemp -d)
git clone git@github.com:opendatahub-io/data-science-pipelines-operator.git
cd data-science-pipelines-operator/
git fetch origin pull/628/head
git checkout -b pullrequest 7ed99727f215de4fd1a0fb122b0e434f04b634e8
oc new-project opendatahub
make deploy IMG="quay.io/opendatahub/data-science-pipelines-operator:pr-628"

More instructions here on how to deploy and test a Data Science Pipelines Application.

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-628

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-628

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-628

[DharmitD]

@diegolovison can you also take a look, since you might need to update the related script that runs downstream. (I believe you should be good though since the Makefile command remains the same, but if you could just check and confirm)

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-628

[DharmitD]

/lgtm

[VaniHaripriya]

Verified the tests in local. /lgtm

[HumairAK]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HumairAK

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