Support: SAP05: Result sharing via Web Editor

[soxofaan]

from https://github.com/openEOPlatform/architecture-docs/issues/306:

Might already work as it likely only passes through results? Make sure it's passed through correctly...

• Provide canonical link in STAC metadata for Batch Job result
• Provide process in STAC metadata Batch Job result

[soxofaan]

note to self:

Provide canonical link in STAC metadata for Batch Job result

canonical links are implemented in openeo-python-driver, but require configs SIGNED_URL/SIGNED_URL_SECRET/SIGNED_URL_EXPIRATION, which are not set in aggregator app
(requires non-public config system, which we don't have yet -> #94 )

[soxofaan]

What is already done under #98 is to just pass through the canonical link from the upstream job metadata.
This should already cover 99% of the need for canonical links. However, one minor issue is that the upstream job metadata contains a different job id:
e.g. aggregator job "vito-j-123" will have id "vito-j-123" in the normal job metadata (served by aggregator), while the upstream job metadata at the canonical link will have "j-123".