Bump pallet-staking-async to 0.6.2 (#980)

Brings paritytech/polkadot-sdk#10051 to here, to
be made into a 1.9.3 release for Kusama.

Can be merged, but a 1.9.3 release should come only after we verify the
fix in westend.

---------

Co-authored-by: Dónal Murray <donalm@seadanda.dev>

Author: kianenigma

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 - [BHP](https://github.com/polkadot-fellows/runtimes/pull/978) Add missing snowbridge runtime API to the BridgeHub
   runtime.
+- Bump `pallet-staking-async` to `0.6.2` to fix incorrect self stake accounting (https://github.com/polkadot-fellows/runtimes/pull/980)
 
 ## [1.9.2] 08.10.2025
 

Cargo.lock

@@ -10,7 +10,7 @@ pallet-ah-migrator = { path = "pallets/ah-migrator", default-features = false }
 pallet-rc-migrator = { path = "pallets/rc-migrator", default-features = false }
 pallet-ah-ops = { path = "pallets/ah-ops", default-features = false }
 pallet-election-provider-multi-block = { version = "0.3.2", default-features = false }
-pallet-staking-async = { version = "0.6.0", default-features = false }
+pallet-staking-async = { version = "0.6.2", default-features = false }
 hex = { version = "0.4.3", default-features = false }
 rand = { version = "0.9.2" }
 impl-trait-for-tuples = { version = "0.2.3", default-features = false }