Maintain lastUpdate property of ORD resources

[emmakarova]

Description
ORD resources have the lastUpdate field for saving the information about the time when the resources (or its resource definitions if it has such) have changed since the last aggregation. The lastUpdate is not always maintained by the ORD providers, so UCL now will set the right timestamp regarding the state of the resources.

Resources that have the property lastUpdate in the ORD spec - API, Event, Consumption Bundle, Capability, Integration Dependency, Entity Type, Data Product.

Changes proposed in this pull request:

• set lastUpdate to time.Now when creating the resource (on aggregation when the resource is not present in the DB)
• find the newest value for the lastUpdate comparing its value in the document and in the db
• exclude the lastUpdate field from the hash of the resources
• if the hash of the resource has changed, set the lastUpdate to time.Now
• add lastUpdate field to Consumption bundle
• adapt unit tests
• add migration for altering the bundles table

Related issue(s)

• Add lastUpdate property to Consumption Bundle Entity ord-service#120

Pull Request status

• Implementation
• Unit tests
• Integration tests
• chart/compass/values.yaml is updated
• Mocks are regenerated, using the automated script

[kyma-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[emmakarova]

/retest

[emmakarova]

/test pre-main-compass-integration-no-dump

[emmakarova]

/test pre-main-compass-integration-no-dump

[emmakarova]

/retest

[kyma-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alextargov

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