Refactor the E2E framework. Add migration framework.

[blackpiglet]

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Does your change fix a particular issue?

Fixes #8573

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• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file (make new-changelog) or comment /kind changelog-not-required on this PR.
• Updated the corresponding documentation in site/content/docs/main.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.18%. Comparing base (78c97d9) to head (9964b37).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8564      +/-   ##
==========================================
+ Coverage   59.17%   59.18%   +0.01%     
==========================================
  Files         370      370              
  Lines       39487    39595     +108     
==========================================
+ Hits        23366    23434      +68     
- Misses      14647    14679      +32     
- Partials     1474     1482       +8     

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