docs: add changelog entry for staking_info fields

Signed-off-by: Mounil <mounilkankhara@gmail.com>

Author: Mounil2005

CHANGELOG.md

@@ -33,6 +33,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 - Format `tests/unit/custom_fee_test.py` with black for code style consistency. (#1525)
 
 ### Added
+- Add staking_info fields (`staked_account_id`, `staked_node_id`, `decline_staking_reward`) to ContractInfo class to expose staking metadata from protobuf. (#1365)
 - Implement custom `__repr__` method for `FileId` class that returns constructor-style representation for improved debugging experience (#1628)
 - Added foundational guide for GitHub Workflows (#1741)
 - Contract-specific CodeRabbit review instructions in `.coderabbit.yaml` for improved automated PR feedback on ABI, gas, ContractId, and protobuf safety. (#1695)