Backport to branch(3.16) : Add Cassandra permission test

[feeblefakie]

This is an automated backport of the following:

• Original PR: Add Cassandra permission test #2822
• Backported commit: 29e0a41

Please merge this PR after all checks have passed.

[gemini-code-assist]

Summary of Changes

Hello @feeblefakie, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request backports a significant enhancement by introducing comprehensive permission integration tests specifically for Cassandra. It establishes a robust framework to verify that both administrative and data manipulation operations adhere to defined user permissions within a Cassandra environment, ensuring secure and controlled access to the database. This work sets up the necessary infrastructure and utilities to run these specialized tests.

Highlights

• New Permission Test Framework: I've introduced new abstract base classes, DistributedStorageAdminPermissionIntegrationTestBase and DistributedStoragePermissionIntegrationTestBase, to standardize permission integration testing across various distributed storage implementations. This provides a consistent structure for verifying access controls.
• Cassandra-Specific Permission Tests: I've added concrete Cassandra implementations, CassandraAdminPermissionIntegrationTest and CassandraPermissionIntegrationTest, which extend the new base classes. These provide dedicated tests to ensure Cassandra's permission model functions correctly for both administrative and data manipulation operations. Note that import-related functionalities are explicitly disabled for Cassandra as they are not supported.
• Gradle Build Configuration: The core/build.gradle file has been updated to define a new integrationTestCassandraPermission source set and a dedicated Gradle task. This allows these new permission tests to be run independently and efficiently.
• Cassandra Permission Utilities: I've introduced CassandraPermissionTestUtils and extended CassandraEnv to facilitate the creation, management, and permission granting for 'normal users' within Cassandra specifically for testing purposes. This includes logic for creating and dropping Cassandra roles and granting necessary permissions.

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[gemini-code-assist]

Code Review

This pull request backports the addition of Cassandra permission tests. It includes changes to build.gradle to include and exclude the new test files, adds new test utility classes, and adds integration tests for Cassandra admin permissions. The changes also include adding properties for normal user credentials in CassandraEnv.

[gemini-code-assist]

Consider extracting the property keys PROP_CASSANDRA_NORMAL_USERNAME and PROP_CASSANDRA_NORMAL_PASSWORD into a common configuration class to avoid duplication and improve maintainability.

    String username =
        System.getProperty(PROP_CASSANDRA_NORMAL_USERNAME, DEFAULT_CASSANDRA_NORMAL_USERNAME);
    String password =