[Feature]: design and implement DurableFuture::anyOf

[zhongkechen]

What would you like?

• anyOf(op1, op2, ...) returns a new DurableFuture which completes when any of the provided durable operations completes
• allOf(op1, op2, ...) returns a new DurableFuture which completes when all of the provided durable operations complete

Possible Implementation

Based on the CompletableFuture inside each operation

Is this a breaking change?

No

Does this require an RFC?

No

Additional Context

No response