Bump the github.com/onsi/ginkgo dependency to v2

[timflannagan]

Description of the change:
Update the repository from ginkgo v1 to ginkgo v2.

Motivation for the change:
Align ginkgo version with the other major OLM repositories.

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

Closes #997

[codecov]

Codecov Report

Merging #998 (5590010) into master (2a21178) will decrease coverage by 0.01%.
The diff coverage is n/a.

❗ Current head 5590010 differs from pull request most recent head 0037c38. Consider uploading reports for the commit 0037c38 to get more accurate results

@@            Coverage Diff             @@
##           master     #998      +/-   ##
==========================================
- Coverage   52.88%   52.87%   -0.02%     
==========================================
  Files         104      104              
  Lines        9468     9468              
==========================================
- Hits         5007     5006       -1     
- Misses       3528     3529       +1     
  Partials      933      933              

Impacted Files	Coverage Δ
alpha/veneer/semver/semver.go	61.85% <0.00%> (-0.52%)	⬇️

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[timflannagan]

It looks like that codecov check is off given https://app.codecov.io/gh/operator-framework/operator-registry/commit/f8f3f89000b8341095723f677e65b2528295f6ec reports that the difference is with some veneer semver code, but there are zero changes to anything that touches any of the pkg/test files in that domain.

[ankitathomas]

Looks good, just one small nit about the docs

[ankitathomas]

/lgtm

[grokspawn]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ankitathomas, grokspawn, timflannagan

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