fix(misc-openapi): fix openlineage, platform events & swagger

[david-leifker]

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable). If a new feature has been added a Usage Guide has been added for the same.
• For any breaking change/potential downtime/deprecation/big changes an entry has been made in Updating DataHub

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

✅ All tests successful. No failed tests found.

Files with missing lines	Coverage Δ
...datahubproject/openapi/config/SpringWebConfig.java	97.18% <ø> (ø)
...openapi/openlineage/controller/LineageApiImpl.java	0.00% <ø> (ø)
...napi/v2/controller/PlatformEntitiesController.java	0.00% <ø> (ø)
.../datahubproject/openapi/v3/OpenAPIV3Generator.java	90.08% <100.00%> (+0.03%)	⬆️
...registry/config/SpringWebSchemaRegistryConfig.java	100.00% <ø> (ø)

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