Replace Task with ValueTask for performance optimization in Surge consumer and producer

[qodo-code-review]

Description

• The Surge library has been updated to use ValueTask instead of Task for better performance characteristics, particularly for operations that frequently complete synchronously
• Consumer and producer implementations need to be updated to align with the new Surge API contracts
• Test fixtures must be updated to match the new interface signatures

Deliverables

• Update Consumer: Convert SystemConsumer methods (Track, Commit, CommitAll, GetLatestPositions) to return ValueTask instead of Task
• Update Producer: Convert SystemProducer methods (Produce, Flush) to return ValueTask instead of Task
• Update Delegates: Change interceptor delegate types to use ValueTask for lifecycle events
• Upgrade Dependencies: Update Surge and all connector packages to version 1.1.1-alpha.1.52
• Update Tests: Modify FakeConsumer test fixture to implement new ValueTask-based interface

[linear]

DB-1769