Various fixes to ROCK files and integration tests.

[aznashwan]

Depends on: canonical/k8s-test-harness#26

This patchset includes numerous fixes to the integration tests and some ROCKs, most notably:

• switching integration tests to module-scoped harness (the upstream goharbor/harbor-helm chart re-uses names for PVCs which can cross-pollute testing between image version sets)
• ensures harbor-jobservice images' entrypoint service doesn't crash too quickly for Pebble to bother restarting it
• fix harbor-db:v2.6.3 utility binaries symlinks
• fix build-snaps golang version conflicts in trivy-adapter-photon:v2.6.3
• fix registry-photon entrypoint arguments issue when deploying via the upstream goharbor/harbor-helm chart
• formatting fixes for all sanity tests

[aznashwan]

With the unfortunate exception of the harbor-trivy StatefulSet, which seems to have consistent but unrelated PVC provisioning issues on the GitHub runner, this PR finally sees all other sanity and integration tests passing (on amd64, at least).

Although I'd love to get to the bottom of the trivy-adapter's PVC allocation issues on the GH runner eventually, I can vouch that the exact Helm deployment commands in the integration tests consistently run fine in manual testing on the k8s v1.30.3 756 latest/edge snap across all 3 versions and am at a loss as to why it wouldn't on the GH runners.

Given how much of a time sink debugging the runners has already been, I think it's time to cut our losses for now and return to it later if the issue is ever consistent on non-GH-runner environments.

[bschimke95]

Works on ARM as expected: https://github.com/canonical/harbor-rocks/actions/runs/10158064964?pr=22

[bschimke95]

LGTM