Build Pi image for PRs

Workflow runs for Build Pi image for PRs

• Bump docker/setup-buildx-action from 3 to 4

  completed successfully:
  Build Pi image for PRs#36:Pull request#29openedbydependabot[bot]Bot
  dependabot/github_actions/docker/setup-buildx-action-4

  Mar 6, 202650m 1s
  More actions for workflow run 36

• Bump docker/setup-qemu-action from 2 to 4

  completed successfully:
  Build Pi image for PRs#35:Pull request#28openedbydependabot[bot]Bot
  dependabot/github_actions/docker/setup-qemu-action-4

  Mar 6, 202650m 34s
  More actions for workflow run 35

• Bump the github group across 1 directory with 4 updates

  completed successfully:
  Build Pi image for PRs#34:Pull request#27openedbydependabot[bot]Bot
  dependabot/github_actions/github-9fb0de4d5a

  Oct 31, 202559m 7s
  More actions for workflow run 34