Linux runner cache volume experiment

Workflow runs for Linux runner cache volume experiment

• Keep storage comparison paths the same length

  completed successfully:
  Linux runner cache volume experiment#2:Commit1147280pushedbyzaniebot
  zb/linux-runner-cache-volume-rca-20260901

  Sep 1, 202622m 4s
  More actions for workflow run 2

• Compare Namespace cache-volume test storage

  failed:
  Linux runner cache volume experiment#1:Commit0dde11fpushedbyzaniebot
  zb/linux-runner-cache-volume-rca-20260901

  Sep 1, 202610m 0s
  More actions for workflow run 1