ci(.github): enable self hosted runners for AMD64 E2E tasks (backport of #10745)

[kumahq]

Automatic cherry-pick of #10745 for branch release-2.6

Generated by action

cherry-picked commit 9fbead7
⚠️ ⚠️ ⚠️ Conflicts happened when cherry-picking! ⚠️ ⚠️ ⚠️

On branch release-2.6
Your branch is up to date with 'origin/release-2.6'.

You are currently cherry-picking commit 9fbead7e2.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .github/workflows/_test.yaml
	both modified:   .github/workflows/e2e.yaml

no changes added to commit (use "git add" and/or "git commit -a")