🌱 Remove experimental to experimental upgrade test

[perdasilva]

Description

This PR removes the experimental-to-experimental upgrade e2e test because we expect to be able to make breaking API changes in experimental. Even if we override the job and merge changes, subsequent PRs will still fail because we are always comparing the previous release to main.

Reviewer Checklist

• API Go Documentation
• Tests: Unit Tests (and E2E Tests, if appropriate)
• Comprehensive Commit Messages
• Links to related GitHub Issue(s)

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[Copilot]

Pull request overview

This PR updates the CI E2E workflow by removing the “experimental to experimental” upgrade test entry from the e2e job matrix.

Changes:

• Removed the upgrade-ex2ex-e2e matrix item from .github/workflows/e2e.yaml.

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[joelanford]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: joelanford

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[tmshort]

/hold
The reason for this test is to recognize when we make incompatible changes. It's not a require test, it's informative.
The proper fix is to re-tag the upstream, not remove the test.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.25%. Comparing base (1fd37fa) to head (6f2dcb5).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #2518 +/- ##
==========================================
+ Coverage 69.46% 73.25% +3.78% 
==========================================
Files 103 103 Lines 8509 8516 +7 ==========================================
+ Hits 5911 6238 +327 + Misses 2129 1799 -330 - Partials 469 479 +10 

Flag	Coverage Δ
e2e	45.55% <ø> (-0.34%)	⬇️
experimental-e2e	53.65% <ø> (+40.87%)	⬆️
unit	57.94% <ø> (+0.03%)	⬆️

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[tmshort]

/unhold

[tmshort]

/lgtm