test(integration): refactor PolarisRestCatalogIntegrationTest to run against any cloud provider

[HotSushi]

Summary

This PR makes it easier to test the Polaris catalog across different cloud environments by refactoring the existing integration tests - PolarisRestCatalogIntegrationTest. Previously, the tests would only run for S3 or local storage. Key changes include:

• Refactored the main integration test into a reusable abstract base class.
• Added new integration test classes for specific storage backends: AWS, Azure, GCP, and local files.
• Updated Quarkus integration test classes to use these new backend-specific tests.
• Improved test modularity, making it easier to run and maintain catalog integration tests for multiple storage environments.
• Updated license and resource references to reflect the new test structure.

Changes are influenced by the PR: https://github.com/apache/polaris/pull/590/files#diff-725b3a0c77d412c1d2b2b3cc1660824f180bfc459b7180023b6c26ba6d4e0962

Testing

✅ ./gradlew build succeeds
✅ ./gradlew check succeeds
✅ AWS Test succeeds:

INTEGRATION_TEST_S3_PATH=XXXX INTEGRATION_TEST_S3_ROLE_ARN=XXXX ./gradlew :polaris-runtime-service:intTest --tests QuarkusRestCatalogAwsIT

✅ AZURE Test succeeds:

INTEGRATION_TEST_AZURE_PATH=XXXX INTEGRATION_TEST_AZURE_TENANT_ID=XXXX ./gradlew :polaris-runtime-service:intTest --tests QuarkusRestCatalogAzureIT

✅ GCP Test succeeds:

INTEGRATION_TEST_GCS_PATH=XXXX INTEGRATION_TEST_GCS_SERVICE_ACCOUNT=XXXX ./gradlew :polaris-runtime-service:intTest --tests QuarkusRestCatalogGcpIT

[dimas-b]

Nice refactoring, @HotSushi ! Thanks for your contribution.

Some minor comments below.

Also, would you mind adding a small note for how to run these tests with various storage providers in a README under the integration-tests module?

Edit: README somewhere... integration-tests is not aware of cloud providers, of course 😅

[dimas-b]

Aside from AWS test failures, the changes LGTM.

Would anyone be able to validate Azure and GCS tests?

[HotSushi]

@dimas-b tested and working on all clouds, should be good to merge? Need another approval~

[dimas-b]

Thanks for your work on this @HotSushi ! ... merging.