prepare v8 release (cosmos#1860)

* chore: changelog

* chore: update changelog

* chore: add changelog for v7.0.3

* chore: add v7.1.0 to changelog

Co-authored-by: Yaru Wang <yaru@interchain.io>

CHANGELOG.md

@@ -35,13 +35,15 @@ Ref: https://keepachangelog.com/en/1.0.0/
 # Changelog
 
 ## [Unreleased]
+
+
+## [v8.0.0] - 2022-10-31
 * (gaia) bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) to [v0.46.4](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.46.4). See [CHANGELOG.md](https://github.com/cosmos/cosmos-sdk/blob/v0.46.4/CHANGELOG.md) for details.
 * (gaia) [#1573](https://github.com/cosmos/gaia/issues/1573), [#1576](https://github.com/cosmos/gaia/issues/1576) update [cosmos ledger](https://github.com/cosmos/ledger-go) version to [v.0.9.3](https://github.com/cosmos/ledger-go/releases/tag/v0.9.3).
 * (gaia) bump [Liquidity](https://github.com/Gravity-Devs/liquidity) module to [v2.0.1](https://github.com/Gravity-Devs/liquidity/releases/tag/v2.0.1).
 * (gaia) bump [ibc-go](https://github.com/cosmos/ibc-go) module to [v5.0.1](https://github.com/cosmos/ibc-go/releases/tag/v5.0.1). See [CHANGELOG.md](https://github.com/cosmos/ibc-go/blob/v5.0.1/CHANGELOG.md) for details.
 * (gaia) bump [packet-forwarding-middleware](https://github.com/strangelove-ventures/packet-forward-middleware) to depend on ibc-go v5.
-* (gaia) Update go to 1.18.
-* (feat) Add [Groups](https://docs.cosmos.network/main/modules/grthaoup/#group-module) module.
+* (feat) add [Groups](https://docs.cosmos.network/main/modules/grthaoup/#group-module) module.
 * (feat) add [icamauch](https://github.com/cosmos/gaia/tree/main/x/icamauth) (Interchain Account Message Authorization) module.
 * (feat) add [globalfee](https://github.com/cosmos/gaia/tree/main/x/globalfee) module.
 * (feat) replace `MempoolFeeDecorator` with [FeeDecorator](https://github.com/cosmos/gaia/blob/main/x/globalfee/ante/fee.go) to check fees.
@@ -52,6 +54,15 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (gaia) [#1845](https://github.com/cosmos/gaia/pull/1447) Add bech32-convert command to gaiad 
 
 
+## [v7.1.0] -2022-10-14
+* (gaia) bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) to [v0.45.9](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.9) to fix the security vulnerability! See [CHANGELOG.md](https://github.com/cosmos/cosmos-sdk/blob/v0.45.9/CHANGELOG.md) for details.
+
+## [v7.0.3] -2022-08-03
+* (gaia) update go to 1.18.
+* (gaia) bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) to [v0.45.6](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.6). See [CHANGELOG.md](https://github.com/cosmos/cosmos-sdk/blob/v0.45.6/CHANGELOG.md) for details.
+* (gaia) bump [Liquidity](https://github.com/Gravity-Devs/liquidity) module to [v1.5.1](https://github.com/Gravity-Devs/liquidity/releases/tag/v1.5.1).
+* (gaia) bump [cosmos ledger](https://github.com/cosmos/ledger-go) to [v0.9.3](https://github.com/cosmos/ledger-go/releases/tag/v0.9.3) to fix issue [#1573](https://github.com/cosmos/gaia/issues/1573) - Ledger Nano S Plus not detected by gaiad.
+* 
 ## [v7.0.2] -2022-05-09
 
 * (gaia) bump [cosmos-sdk](https://github.com/cosmos/cosmos-sdk) to [v0.45.4](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.4). See [CHANGELOG.md](https://github.com/cosmos/cosmos-sdk/blob/v0.45.4/CHANGELOG.md#v0454---2022-04-25) for details.
@@ -447,7 +458,10 @@ See the [Tendermint v0.34.7 SDK changelog](https://github.com/tendermint/tenderm
 
 <!-- Release links -->
 
-[Unreleased]: https://github.com/cosmos/gaia/compare/v7.0.3...HEAD
+[Unreleased]: https://github.com/cosmos/gaia/compare/v8.0.0...HEAD
+[v8.0.0]: https://github.com/cosmos/gaia/releases/tag/v8.0.0
+[v7.1.0]: https://github.com/cosmos/gaia/releases/tag/v7.1.0
+[v7.0.3]: https://github.com/cosmos/gaia/releases/tag/v7.0.3
 [v7.0.2]: https://github.com/cosmos/gaia/releases/tag/v7.0.2
 [v7.0.1]: https://github.com/cosmos/gaia/releases/tag/v7.0.1
 [v7.0.0]: https://github.com/cosmos/gaia/releases/tag/v7.0.0