remove redundant [] in arm template

[AmirSasson]

Change(s):

• Removed redundant "excludeFields": [] property from Solutions/TheHive/Data Connectors/CCF/PollingConfig.json to resolve an ARM-TTK validation warning
• Updated Solutions/TheHive/ReleaseNotes.md to reflect the fix and correct the release date to 06-04-2026

Reason for Change(s):

• The excludeFields: [] field in the CCF polling config was flagged by the ARM-TTK validation tooling as an unnecessary/redundant property — removing it brings the template into compliance

Version Updated:

• Not applicable — this change is to a Data Connector (CCF PollingConfig), not a Detection/Analytic Rule template

Testing Completed:

• Yes — solution package rebuilt with v3 packaging tool (createSolutionV3.ps1); mainTemplate.json and createUiDefinition.json confirmed as valid JSON; package version
  3.0.2 generated successfully

Checked that the validations are passing and have addressed any issues that are present:

• Yes — the ARM-TTK validation error that prompted this fix has been resolved by removing the redundant field