fix: allow TEE datasetorders without framework

[PierreJeanjacquot]

Datasets use standard encryption that makes them agnostic to the TEE framework as soon as their secret is present in the SMS.
Creating datasetorders without a specified TEE framework let the dataset owner to allow the dataset to be consumed in any TEE framework.

Current limitation: when datasetorder does not specify the TEE framework to use, signDatasetorder and publishDatasetorder perform a preflight to check the dataset secret is in the default SMS (scone). We may want to check whether the secret is present in all SMS or completely skip this check.

[github-actions]

🐳 Hadolint Dockerfile Lint Results

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Dockerfile:17 DL3016 warning: Pin versions in npm. Instead of `npm install <package>` use `npm install <package>@<version>`

[sonarqubecloud]

Quality Gate failed

Failed conditions
44.4% Coverage on New Code (required ≥ 80%)
12.2% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud