fix: update serialization for DestinationDefinitionRead object

[wkargul]

Update Serialization for DestinationDefinitionRead Object

Summary

This PR addresses serialization issues in the DestinationDefinitionRead object. The serialized JSON response was missing the custom field and the release_date was being deserialized incorrectly as a String instead of Vec<u16>.

Changes

• Added missing custom field to serialized output
• Updated the deserialization logic for release_date to use Vec<u16> instead of String

Example Serialized Response

{
  "destinationDefinitionId": "65de8962-48c9-11ee-be56-0242ac120002",
  "name": "Milvus",
  "dockerRepository": "airbyte/destination-milvus",
  "dockerImageTag": "0.0.1",
  "documentationUrl": "https://docs.airbyte.com/integrations/destinations/milvus",
  "icon": "<svg...></svg>",
  "protocolVersion": "0.2.0",
  "custom": false,
  "supportLevel": "community",
  "releaseStage": "alpha",
  "releaseDate": [2023, 8, 15],
  "supportsDbt": false,
  "normalizationConfig": {
    "supported": false
  }
}

Next Steps

After merging this PR, a new version of the library should be built and published to crates.io.

Please review and if all looks good, proceed with merging.

[wkargul]

Hi @omid, please take a look on that :)

[omid]

Please use the just file we have to do these replacements.
Then it'll be easier to do so when there is a new version.

[omid]

Please also link to the code in airbyte with these specs, for custom and release_date 🙏🏼

[wkargul]

Sure thing! I'll tweak it as soon as I can find a moment this week.