Backport to branch(3) : Add rename column

[feeblefakie]

This is an automated request for a manual backport of the following:

• Original PR: Add rename column #2990
• Commit to backport: 2e7cd60

1. Resolve any conflicts that occur during the cherry-picking process.

git fetch origin &&
git checkout 3-pull-2990 &&
git cherry-pick --no-rerere-autoupdate -m1 2e7cd60ebea64f069d58ccc3891a64509e4d1e21

2. Push the changes.
3. Merge this PR after all checks have passed.

Thank you!

[brfrn169]

/gemini review

[Copilot]

Pull Request Overview

This PR backports the "Add rename column" feature from a previous pull request. The purpose is to add a new renameColumn method to the admin interfaces and implementations across all storage backends in ScalarDB.

Key Changes

• Added renameColumn method to Admin interfaces and all implementations
• Updated TableMetadata.Builder to support column renaming operations
• Added comprehensive test coverage for the new functionality

Reviewed Changes

Copilot reviewed 53 out of 53 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
integration-test/src/main/java/com/scalar/db/api/DistributedTransactionAdminIntegrationTestBase.java	Added comprehensive integration tests for renaming columns in various scenarios
integration-test/src/main/java/com/scalar/db/api/DistributedStorageAdminPermissionIntegrationTestBase.java	Added permission test and exposed helper methods as protected
integration-test/src/main/java/com/scalar/db/api/DistributedStorageAdminIntegrationTestBase.java	Added integration tests and exposed admin field as protected
core/src/test/java/*	Added unit tests for renameColumn across all admin implementations
core/src/main/java/com/scalar/db/transaction/*	Implemented renameColumn delegation in transaction admin classes
core/src/main/java/com/scalar/db/storage/*	Implemented renameColumn functionality for each storage backend
core/src/main/java/com/scalar/db/api/*	Added renameColumn method to Admin interface and TableMetadata.Builder
core/src/integration-test/java/*	Added integration tests with proper database-specific limitations

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[gemini-code-assist]

Code Review

This pull request introduces the renameColumn functionality across various storage backends. The changes are extensive, touching the core Admin API, implementing the feature for Cassandra and JDBC, and disabling it for unsupported databases like CosmosDB and DynamoDB. The integration and unit tests have been updated accordingly. My review focuses on ensuring the atomicity of database schema modifications and improving test code maintainability. I've identified a critical issue in the JDBC implementation where schema and metadata updates are not performed atomically, which could lead to an inconsistent state. I've also noted an opportunity to reduce code duplication in the Cassandra integration tests.