[ENG-3906] feat(hubspot/marketing): Read campaigns

[Cobalt0s]

Description

Adds support for reading campaigns in the HubSpot Marketing module.

Changes

• Added a manually maintained schema.json describing campaign object.
  • Added a unit test for ListObjectMetadata to verify the campaign schema.
  • Created README.md to document that schema.json is created and maintained manually.
• Added support for incremental campaign reads using connector-side filtering.
• Flattened fields returned under the properties response key into the Fields output while preserving the original payload in Raw.
• Added unit tests covering campaign reads, including a test that verifies connector-side incremental filtering.

Live Tests

Read campaigns:

Read campaigns with Since:

Campaigns metadata:

[Cobalt0s]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [ENG-3906] feat(hubspot/marketing): Read campaigns #2959 👈 (View in Graphite)
• [ENG-3905] feat(hubspot): Add Marketing module #2958
• feat(hubspot): Use components #2957 : 1 other dependent PR (#2962 )
• main

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[linear]

ENG-3906 HubSpot marketing read actions

[Cobalt0s]

Hubspot won't be using modules.