e2e: fix vlagent path collision in upgrade tests

[AndrewChubatiuk]

upgrade tests may run multiple collectors in parallel, that mount same host path, which lead to vlagent crashes

---

Summary by cubic

Fixes VLAgent upgrade e2e test crashes caused by HostPath collisions when multiple collectors run in parallel. Each test now uses a version-scoped tmp data path and volume to prevent mount conflicts.

• Bug Fixes
  • Added vlagentK8sCollector to enable the k8s collector and set a unique TmpDataPath and HostPath per version (e.g., /var/lib/vlagent-data-<version>), with matching Volume/VolumeMount (tmp-data).
  • Introduced withVersion and updated crVersionPair.cr to a factory func(string) client.Object, so objects are created with the test’s version and unique paths.
  • Replaced repeated inline vlagent k8s collector configs with vlagentK8sCollector across versions v0.68.0–v0.71.0.

^{Written for commit 230cfe4. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 1 file

_{Re-trigger cubic}