feat: update changelog

Added examples and documentation for token pause/unpause behavior and transaction lifecycle. Included inactivity bot workflow for stale issue management.

Signed-off-by: prajeeta  <96904203+prajeeta15@users.noreply.github.com>

Author: prajeeta15

CHANGELOG.md

@@ -8,9 +8,6 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 
 ### Added
 
-- Add examples/tokens/token_create_transaction_pause_key.py example demonstrating token pause/unpause behavior and pause key usage (#833)
-- Added `docs/sdk_developers/training/transaction_lifecycle.md` to explain the typical lifecycle of executing a transaction using the Hedera Python SDK.
-- Add inactivity bot workflow to unassign stale issue assignees (#952)
 - feat: Allow `add_hbar_transfer`, `add_approved_hbar_transfer`, and internal `_add_hbar_transfer` to accept `Hbar` objects in addition to raw tinybar integers, with internal normalization to tinybars. Added tests validating the new behavior.
 
 ### Changed