[XEN-3146] Upgrade to AWS SDK 2.x

[NotAPenguin0]

AWS SDK 1.x is obsolete. This PR ports the implementation to version 2.x. Updated methods are annotated with a comment to explain the change in migration, these can be removed later if needed.

[pvriel]

Please take a look at the comments I left behind. Nothing major, though ;)

[Copilot]

Pull Request Overview

This PR migrates the AWS SDK from version 1.x to version 2.x, addressing the obsolescence of SDK 1.x. The migration involves updating API calls, exception handling, and request/response patterns throughout the codebase to align with SDK 2.x conventions.

Key changes:

• Updated all AWS SDK imports from com.amazonaws.* to software.amazon.awssdk.*
• Migrated from imperative API style to builder patterns for all S3 operations
• Replaced manual pagination with SDK 2.x paginator utilities
• Implemented custom progress tracking for multipart uploads

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
S3StorageClient.java	Core migration of S3 client initialization and all S3 operations to SDK 2.x APIs
S3OutputStream.java	Updated multipart upload implementation with SDK 2.x request/response patterns
S3BackupRepositoryConfig.java	Added new configuration properties and updated client builder integration
S3BackupRepository.java	Added URISyntaxException handling for client initialization
ProgressTrackingInputStream.java	New custom implementation to track upload progress
build.gradle files	Updated dependencies from AWS SDK 1.x BOM to 2.x BOM
solr.xml	Added new configuration properties for checksum validation and progress logging
docker-compose.yml	Added volume mount options and new environment variable
SolrBackupTest.java	Migrated test S3 client initialization to SDK 2.x

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