sign and detect tampering

[entlein]

This PR needs to be reviewed together with the original signature PR

It builds upon the previous PRs and adds

• cmd/sign-object/: standalone binary an admin uses to sign a profile against a cosign key.

(This one has no sister PR in storage)

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 9bdc7b7f-4d75-4b01-80d0-d8efa5db94ba

📥 Commits

Reviewing files that changed from the base of the PR and between cc59fa0 and c535f21.

📒 Files selected for processing (25)

• cmd/sign-object/Dockerfile
• cmd/sign-object/main.go
• pkg/exporters/alert_manager.go
• pkg/objectcache/containerprofilecache/tamper_alert.go
• pkg/objectcache/containerprofilecache/tamper_alert_test.go
• pkg/signature/annotations.go
• pkg/signature/cluster_flow_test.go
• pkg/signature/cluster_scenario_test.go
• pkg/signature/cosign_adapter.go
• pkg/signature/cosign_adapter_test.go
• pkg/signature/interface.go
• pkg/signature/profiles/adapter_test.go
• pkg/signature/profiles/applicationprofile_adapter.go
• pkg/signature/profiles/empty_typemeta_test.go
• pkg/signature/profiles/networkneighborhood_adapter.go
• pkg/signature/profiles/networkneighborhood_adapter_test.go
• pkg/signature/profiles/rules_adapter.go
• pkg/signature/profiles/rules_adapter_test.go
• pkg/signature/profiles/seccompprofile_adapter.go
• pkg/signature/sign.go
• pkg/signature/sign_test.go
• pkg/signature/signer.go
• pkg/signature/verifier.go
• pkg/signature/verify.go
• pkg/signature/verify_test.go

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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